HI, I'M JOHN DAVIS, AND THIS IS MOTORWEEK!

JOIN US AS WE CELEBRATE 25 YEARS OF CALLAWAY PERFORMANCE WITH A POWERFUL CORVETTE DUET.

PAT GOSS WARNS US ABOUT THE PERILS OF POOR QUALITY GASOLINE.

OVER THE EDGE REPORTER STEVEN CHUPNICK CHECKS OUT A NEW HIGH-TECH AUTO PLANT.

AND WE'LL SEE IF ALL-IS-WELL WITH THE RETURN OF THE AUDI ALLROAD.

SO COME DRIVE WITH US, NEXT!

Announcer: MOTORWEEK, TELEVISION'S ORIGINAL AUTOMOTIVE MAGAZINE.

BROUGHT TO YOU BY... AND THAT IS WHERE BABIES COME FROM.

DAD, I HAVE A QUESTION.

YOU DO?

DOES THE ASYMMETRICAL TREAD PATTERN OF A TIRE HAVE ANY EFFECT ON STOPPING DISTANCE?

Announcer: THERE'S A BETTER PLACE TO ASK QUESTIONS ABOUT YOUR TIRES.

UH... GO ASK YOUR MOTHER.

Announcer: TIRERACK.COM CAN HELP YOU GET THE ANSWERS YOU NEED AND HELP YOU FIND WHICH TIRES ARE BEST FOR YOU.

MORE INFORMATION IS AVAILABLE AT TIRERACK.COM.

AND BY... 3M, MAKER OF INNOVATIVE AUTO CARE PRODUCTS.

AGED OR YELLOWED LENSES REDUCE BRIGHTNESS OF HEAD, TAIL AND DIRECTIONAL LIGHTS.

THE 3M HEADLIGHT RESTORATION SYSTEM HELPS RESTORE LENS CLARITY FOR SAFER DRIVING.

John: THOSE OF YOU WITH A "SIGNIFICANT OTHER" KNOW THAT ANNIVERSARIES ARE AN IMPORTANT THING TO REMEMBER.

WELL, THEY'RE JUST AS IMPORTANT IN THE CAR WORLD, TOO!

AND ONE OF OUR FAVORITE ENGINEERS OF POWERFULLY ENGINEERED AUTOMOBILES RECENTLY CELEBRATED A BIG ONE.

25 YEARS OF TURNING GOOD CARS INTO GREAT ONES IS QUITE A FEAT, AND WE WERE HAPPY TO OBLIGE WHEN REEVES CALLAWAY INVITED US TO THE CELEBRATION.

AND TO PROVE HE'S NOT SLOWING DOWN ANY TIME SOON, HE SENT US A COUPLE OF AMAZING PARTY FAVORS!

OUR FIRST MEMENTO IS NO SMALL ONE, THIS 2012 25TH ANNIVERSARY LIMITED EDITION CALLAWAY CHEVROLET CORVETTE.

WE'VE BEEN WAITING TO GET OUR BEHINDS IN THE SEAT OF THIS CAR SINCE WE GOT AN EARLY SNEAK PEAK FROM REEVES AND THE BOYS AT THE FACTORY EARLIER THIS SPRING, AND WITHOUT GIVING TOO MUCH AWAY, IT WAS WORTH THE WAIT.

THE CALLAWAY 25TH ANNIVERSARY CORVETTE STARTS OUT AS A SPECIAL ORDER GRAND SPORT THAT GETS PREPPED FOR CALLAWAY AT THE BOWLING GREEN CORVETTE FACTORY, THANKS TO REGULAR PRODUCTION OPTION CODE B2K.

FROM THERE, IT'S UP TO OLD LYME, WHERE THE REAL MAGIC TAKES PLACE AND THE TRANSFORMATION IS A LOT MORE INTENSE THAN JUST SLAPPING SOME 25TH ANNIVERSARY BADGES AND CALLING IT A DAY.

THIS CAR WAS DESIGNED TO REPRESENT CALLAWAY'S 25 YEARS IN THE HIGH PERFORMANCE BUSINESS; AND WITH PERFORMANCE BEING THE KEY WORD, THIS CAR HAD BETTER BRING IT.

HAVE NO FEAR, AS IT PACKS THE HIGHEST OUTPUT LS3 V8 EVER TO ROLL OUT OF THE CALLAWAY SHOP IN A CORVETTE.

620-HORSEPOWER AND 555 POUND-FEET OF TORQUE WITH THE HELP OF THE USUAL TVS2300 SUPERCHARGER, HIGH RATIO ROCKER ARMS, AND UPGRADED VALVE SPRINGS AND PUSHRODS.

FUEL DELIVERY IS AIDED BY A NEW FUEL PUMP AND INJECTORS.

SO, WE'RE OFF TO THE TRACK TO REALLY GET THIS PARTY STARTED.

SITTING AT THE LINE, HEARING AS WELL AS FEELING THIS CORVETTE'S LURKING NASTINESS MAKES IT HARD TO BE PATIENT, BUT PATIENCE IS CERTAINLY REQUIRED WHEN IT COMES TO THROTTLE INPUTS AND GETTING OFF THE LINE WITH ANY TRACTION.

AFTER A FEW WARM UP RUNS HOWEVER, WE WERE ABLE TO GET HOOKED UP AND NAILED A 3.4-SECOND RUN TO 60 AND A QUARTER MILE PASS OF 10.8-SECONDS AT 128 MILES-PER-HOUR.

THAT'S TWO-TENTHS QUICKER TO 60 AND A FULL HALF SECOND FASTER IN THE QUARTER MILE THAN THE CALLAWAY SC606 CORVETTE THAT WE TESTED EARLIER.

THE 25 PEOPLE LUCKY ENOUGH TO GET THEIR HANDS ON A 25TH ANNIVERSARY CALLAWAY WILL HAVE TO FORK OVER $52,980 PLUS THE CORVETTE GRAND SPORT'S BASE PRICE OF $56,975.

SO, IT IS A REAL PRIZE.

NEXT WE TURN OUR ATTENTION FROM A CORVETTE THAT CELEBRATES THE PAST TO ONE THAT'S FULLY IN THE "NOW", THE 2013 CALLAWAY CHEVROLET CORVETTE SC652 60TH ANNIVERSARY 427 CONVERTIBLE COLLECTOR EDITION.

IT ALSO MARKS A SPECIAL ANNIVERSARY, 60 YEARS OF CORVETTE, AS WELL AS BEING THE LAST C6 WE WILL TEST.

THOUGH THE 427 IS ALREADY THE MOST POWERFUL CORVETTE CONVERTIBLE THAT GM HAS EVER BUILT, 505-HORSEPOWER AND 470 POUND-FEET OF TORQUE FROM ITS 7.0-LITER LS7 V8, THAT'S NOWHERE NEAR ENOUGH FOR THE CALLAWAY FOLKS.

SO, IT'S THROUGH THE AWESOME-A-NATOR, WHERE IT COMES OUT THE OTHER SIDE WEARING A SUPERCHARGER WITH INTERCOOLER, NEW INJECTORS AND FUEL PUMP, AND CHURNING OUT 652-HORSEPOWER AND 620 POUND-FEET OF TORQUE.

STARTING WITH Z06-STYLE CARBON FIBER FENDERS, THE 427 GETS THE FULL WIDE-BODY TREATMENT.

FROM THERE, CALLAWAY ADDS THEIR DOUBLE-D STAINLESS STEEL EXHAUST SYSTEM, CARBON FIBER POWER BULGE HOOD, AND, OF COURSE, AN AUTHENTICATING DASH PLAQUE.

BUYERS CAN THAN ADD CARBON FIBER FRONT SPLITTER, ROCKER EXTENSIONS, AND REAR SPOILER.

INSIDE, THE 60TH ANNIVERSARY 427 CORVETTE COMES WITH A TWO-TONE INTERIOR WITH COLORED STITCHING, COMFORTABLE LEATHER BUCKETS WITH SPECIAL EMBROIDERY ON THE HEADRESTS, AND ALCANTARA LEATHER THROUGHOUT.

SO, HOW DOES THIS 'VETTE STACK UP AT THE TRACK?

WELL, DESPITE THE CONVERTIBLE'S EXTRA WEIGHT, WE SPRINTED TO 60 IN JUST 3.6-SECONDS, WITH THE QUARTER MILE PASSING IN A SUPER-QUICK 11.1-SECONDS AND 127 MILES-PER-HOUR.

AWESOME!

POWER COMES ON LIKE A SLEDGEHAMMER NO MATTER WHAT THE TACH IS SAYING AND THE 6-SPEED MANUAL SHIFTER'S THROWS ARE PLEASANTLY SHORT, BUT DO REQUIRE A FIRM HAND.

THE MOSTLY STOCK SUSPENSION PROVED ADEQUATE THROUGH THE CONES; THOUGH BY NO MEANS PAINTING A FULL PICTURE OF THIS CAR'S FULL POTENTIAL.

IT DOESN'T TAKE MUCH TO REALIZE FULL BRAKING POTENTIAL HOWEVER, AND STOPS FROM 60 IN 108-FEET ARE EXCELLENT.

IT WILL HOWEVER, CERTAINLY PUT A DENT IN THE KIDS' COLLEGE FUND TO PUT A 427 SC652 IN YOUR GARAGE, THOUGH NOT AS MUCH AS THE 25TH ANNIVERSARY CAR, JUST $24,695 ADDED TO THE 427'S PRICE OF $76,900.

OBVIOUSLY, WE PARTY A LITTLE DIFFERENTLY THAN MOST HERE AT MOTORWEEK.

OUR FAVORITE SHINDIGS TAKE PLACE BEHIND THE WHEELS OF SOME AMAZING AUTOMOTIVE HARDWARE, AND NEVER HAVE WE PARTIED HARDER THAN AT THE WHEEL OF A CALLAWAY CORVETTE!

HENRY FORD REVOLUTIONIZED CAR BUILDING WITH THE ASSEMBLY LINE.

THE IDEA OF MOVING THE CARS PAST STATIONARY WORKERS WAS RADICAL, BUT IT QUICKLY BECAME THE NORM BY BOOSTING OUTPUT QUALITY, YET LOWERING PRICES.

NOW, WORKING ON AN ASSEMBLY LINE SOUNDS A LOT LIKE A SWEAT SHOP.

BUT, AS OUR OVER THE EDGE GUY STEVEN CHUPNICK FOUND, AT NORTH AMERICA'S NEWEST AUTO ASSEMBLY PLANT, NOTHING COULD BE FURTHER FROM THE TRUTH.

Steven: DAY AFTER DAY, YEAR AFTER YEAR, CARS AND TRUCKS ROLL OFF THE ASSEMBLY LINE.

BUT AT VOLKSWAGEN'S CHATTANOOGA, TENNESSEE ASSEMBLY PLANT, THE PASSATS COMING DOWN HAVE A LITTLE EXTRA SOCIAL RESPONSIBILITY TRAVELING ALONG WITH THEM.

THESE 180,000 CARS A YEAR ARE MADE IN THE ONLY FACTORY IN THE WORLD WITH THE PLATINUM LEED CERTIFICATION NEXT TO ITS NAME.

ONLY AFTER A YEAR OF BEING OPEN, THE PLANT RECEIVED ONE OF THE HIGHEST HONORS IT COULD GET.

LEED - AN ACRONYM FOR LEADERSHIP IN ENERGY AND ENVIRONMENTAL DESIGN DEVELOPED BY THE U.S. GREEN BUILDING COUNCIL.

THAT MEANS IT'S DESIGNED TO LOWER OPERATING COSTS, REDUCE WASTE, CONSERVE ENERGY AND WATER, ALL WHILE PROVIDING A HEALTHIER AND SAFER WORKPLACE.

Ron Drumeller: RECYCLED GLASS TILES THROUGHOUT THE FLOOR IN THE PLANT.

THERE IS A WHITE MEMBRANE ON THE ROOF THAT REDUCES THE HEAT OUT IN EFFECT.

ALSO ON THE ROOF, WE HAVE STORM WATER COLLECTION, WHICH IS WATER HARVESTING.

Steven: AND HERE'S SOMETHING THAT MAKES CHATTANOOGA UNIQUE... A THREE-STORY ROBOTIC PAINT SHOP!

WHAT, YOU DON'T WEAR SOMETHING LIKE THIS TO WORK EVERY DAY?

NO, JUST KIDDING.

BUT THE GUYS AND GALS WHO WORK HERE AT THE PAINT SHOP MUST WEAR SOMETHING LIKE THIS TO KEEP THE DUST OUT OF THE AREA, OUT OF THE CARS.

Ron: THE GREEN PAINT SHOP IS THE MOST TECHNOLOGICALLY ADVANCED PAINT SHOP IN THE WORLD, USING CRUSHED DRY LIMESTONE POWDER FOR THE PAINT SEPARATION INSTEAD OF THE CONVENTIONAL WET PAINT SEPARATION.

WE SAVE 50,000 GALLONS A DAY.

WE ACTUALLY HAVE A DRY POWDER THAT CAN BE RECYCLED.

Steven: AND NOT ONLY IS THE PLANT GOOD FOR VW WORKERS; IT'S GOOD FOR THE CITY OF CHATTANOOGA.

Hilary Hodgkins: WHEN THEY ANNOUNCED THAT VOLKSWAGEN HAD CHOSEN CHATTANOOGA, EVERYBODY WAS THRILLED.

WE HAVE TWO NEW RIVER PARKS HERE.

THINGS HAVE JUST REALLY BLOSSOMED IN TERMS OF...

THERE'S NEW MAGNET SCHOOLS.

I THINK THERE'S BEEN A REAL EMPHASIS NOW.

IT'S ALMOST LIKE CHATTANOOGA HAS BECOME AN INTERNATIONAL CITY.

Steven: BUT, COMING TO AN AREA WITHOUT A CAR BUILDING HERITAGE WAS A CHALLENGE FOR VW.

ASSEMBLY WORKERS HAD TO BE TRAINED FROM THE GROUND UP.

THAT STARTS AT THE VOLKSWAGEN ACADEMY.

Noland Mikens: FOR EVERY TEAM MEMBER, AFTER THEY GO THROUGH THREE WEEKS OF TRAINING UP AT VOLKSWAGEN ACADEMY, THEY COME DOWN TO THE 'PROFY ROOM,' WHICH IS SHORT FOR PROFESSIONAL ROOM.

WE DO AN INTENSE, VERY FOCUSED TRAINING FOR THEM ON THEIR PARTICULAR PROCESS.

Steven: SO WHAT'S THE ACADEMY ACTUALLY LIKE?

THERE ARE 5 DIFFERENT PODS IN 5 DIFFERENT AREAS; FROM BASIC PARTS, AUTOMATION, DIAGNOSTICS, TO ADVANCED TRAINING OF FULLY BUILDING A CAR.

AND AS FOR MOVING PARTS QUICKLY, I THOUGHT IT MIGHT BE FUN TO CHECK OUT HOW TO MANEUVER THEIR KART SYSTEM.

NOW, THAT'S SOME FUN STUFF.

BUT VOLKSWAGEN TAKES BUILDING QUALITY VERY SERIOUSLY - AN EXTENSIVE VEHICLE AUDIT IS COMPLETED ON TWO CARS EACH DAY TO UNDERCOVER THE SMALLEST FLAWS.

Man: HOW IT SMELLS, HOW IT FEELS, HOW IT LOOKS.

Steven: THEY USE THE SAME DETAIL CHECKLIST FOR ALL OF VW'S FAMILY OF BRANDS.

Man: IF YOU WANT TO, YOU CAN FEEL THE SAME THING I'M FEELING, PRIMARILY WITH YOUR FINGER.

Steven: AND THAT BRANDING... WHAT DID WE TOUR THE PLANT WITH?

A PASSAT-DESIGNED TRAM.

NOW, THAT'S WHAT I CALL TRAVELING IN STYLE.

VOLKSWAGEN'S CHATTANOOGA SITE IS A MODEL FOR THE FUTURE OF AUTOMOTIVE ASSEMBLY... BUILDING BETTER CARS, BETTER EMPLOYEES, AND BETTER COMMUNITIES.

SO THE NEXT TIME YOU SEE A NEW VW PASSAT COMING DOWN THE ROAD, MAKE SURE YOU ADD A LITTLE THANKS TO YOUR GUTEN TAG.

John: THE OLD SAYING "YOU GET WHAT YOU PAY FOR" IS A HANDY CAVEAT.

AND AS OUR PAT GOSS EXPLAINS, IT CAN EVEN APPLY AT THE PUMP.

Pat Goss: THE PRICE OF GASOLINE IS HURTING EVERYONE.

AND CERTAINLY IF WE COULD GO BACK TO THE PRICE WE SEE ON THIS ANTIQUE GAS PUMP, IT WOULD HELP EVERYONE.

BUT IT ISN'T GOING TO HAPPEN.

AND THAT MEANS YOU HAVE TO SHOP FOR A DECENT PRICE ON GAS.

BUT YOU HAVE TO BE CAREFUL, YOU HAVE TO TRY TO AVOID VERY LOW VOLUME STATIONS.

YOU SEE, GASOLINE, WHEN IT'S KEPT IN STORAGE, EVAPORATES.

BUT THE ADDITIVES IN THAT GASOLINE DON'T.

SO IF IT'S IN STORAGE FOR TOO LONG A PERIOD OF TIME, YOU MAY HAVE AN IMBALANCE IN THE ADDITIVES TO THE AMOUNT OF GASOLINE.

NOT THAT IT'S GOING TO DESTROY YOUR CAR OR ANYTHING LIKE THAT, BUT YOU MAY HAVE SOME SIDE-EFFECTS THAT COULD COST YOU A LOT OF MONEY.

NUMBER ONE IS THAT YOU MAY, PERIODICALLY, HAVE A SITUATION WHERE YOU GET A STRONG, ROTTEN EGG ODOR FROM THE EXHAUST ON YOUR CAR.

NOW, THAT COULD BE FROM TOO MUCH SULFUR IN THE GASOLINE.

THE SULFUR COLLECTS IN THE CATALYTIC CONVERTER, AND WHEN YOU ACCELERATE, IT'S EMITTED IN ONE CLOUD, AND YOU SMELL IT.

AND BELIEVE ME, IT STINKS.

SO YOU TAKE YOUR CAR TO THE REPAIR SHOP AND THE TECHNICIAN SAYS, "OH, YOU NEED A NEW CATALYTIC CONVERTER.

THAT'LL BE BLANK-ETY BLANK HUNDRED DOLLARS.

THANK YOU VERY MUCH."

WELL, DON'T DO IT.

YOU SEE, THE REALITY IS, THERE MAY BE ABSOLUTELY NOTHING WRONG WITH THE CATALYTIC CONVERTER, IT MAY JUST BE THE GAS YOU'RE USING.

SO TRY SEVERAL TANKS OF DIFFERENT TYPES OF GASOLINE, DIFFERENT BRANDS.

SEE IF THE PROBLEM GOES AWAY.

AND IF IT DOES, HEY YOU'VE JUST SAVED A BUNCH OF MONEY.

THE OTHER THING IS, THAT TOO MUCH SULFUR CAN REACT WITH THE SENDING UNIT IN THE TANK THAT OPERATES THE FUEL GAUGE ON THE DASH.

NOW, HERE WE HAVE A TYPICAL TANK UNIT.

HERE'S THE FLOAT, THAT GOES UP AND DOWN WITH THE LEVEL OF THE FUEL.

AND OVER HERE, ON THE OTHER END OF IT, WE HAVE A VARIABLE RESISTOR.

THAT VARIES THE AMOUNT OF VOLTAGE GOING BACK TO THE UNIT IN THE DASH, AND THAT'S WHAT CONTROLS THE MOVEMENT OF THE DASH GAUGE.

WELL, A LOT OF THESE ARE MADE OF SILVER.

WHEN WE GET TOO MUCH SULFUR IN THE FUEL, THE SILVER REACTS WITH THE SULFUR AND WE GET AN OXIDE THAT CAUSES PROBLEMS WITH THE FUEL GAUGE.

IT MAY BECOME ERRATIC, SWINGING BACK AND FORTH, IT MAY BE FULL ALL THE TIME, OR EMPTY ALL THE TIME.

WELL, IN A LOT OF CASES, THAT MEANS THAT YOU HAVE TO REPLACE THE TANK UNIT.

WHICH CAN BE SEVERAL HUNDRED DOLLARS.

BUT, WE'VE FOUND A COUPLE OF PRODUCTS, LIKE THIS BG44K, THAT HAS DONE A GOOD JOB OF CLEANING AWAY THAT OXIDE AND RESTORING THE FUNCTION OF THE FUEL GAUGE.

YOU MIGHT WANT TO TRY A CHEMICAL TO TREAT THE SYSTEM FIRST BECAUSE IT COULD SAVE YOU SEVERAL HUNDRED DOLLARS.

AND IF YOU HAVE A QUESTION OR A COMMENT, DROP ME A LINE RIGHT HERE AT MOTORWEEK.

John: WE'RE AT THE EIGHT MONTH MARK, OR TWO THIRDS THE WAY THROUGH OUR LONG-TERM TEST OF A 2012 HYUNDAI ACCENT SE 5-DOOR SUBCOMPACT, ONE OF THE WINNERS OF THIS YEAR'S DRIVERS' CHOICE AWARDS.

THE STYLISH ACCENT IS ALSO NOTABLE FOR ITS GOVERNMENT FUEL ECONOMY RATINGS -- EVEN IF THEY ARE LESS THAN HYUNDAI ORIGINALLY CLAIMED; 28 CITY, 37 HIGHWAY.

OUR STOP-AND-GO AVERAGE IS CLOSER TO THE CITY FIGURE, 31.5 MILES PER GALLON OF REGULAR.

SO WE'RE GENERALLY PLEASED.

THE 138-HORSEPOWER 1.6-LITER I4 AUTOMATIC DRIVETRAIN PULLS WELL, IF, AFTER SOME 7,500 MILES, IT'S A LITTLE NOISIER THAN AVERAGE WHEN STRESSED.

WHILE THE SOFT RIDE MAY HINDER SPIRITED DRIVING, IT'S A BLESSING OVER BROKEN PAVEMENT AND POTHOLES SO PREVALENT ON THE EAST COAST.

STEERING IS LIGHT BUT DIRECT, AND BRAKES WORK WELL.

IT'S A GREAT LITTLE RUNABOUT.

AND EVEN MORE COMFORTABLE THAN EXPECTED ON LONGER TRIPS.

THE VERSATILITY OF THIS LITTLE HATCHBACK HAS BEEN TESTED FREQUENTLY AND IT UNDERSCORES WHY THIS BODY STYLE IS SO POPULAR IN EUROPE AND IS GAINING FAVOR HERE.

WE'VE BEEN VERY PLEASED WITH OUR 2012 JEEP GRAND CHEROKEE.

AFTER A FULL YEAR OF SERVICE THE ONLY DISAPPOINTMENT IS FUEL ECONOMY.

EVEN WITH A MODERN 290-HORSEPOWER 3.6-LITER V6, IT STANDS AT JUST 20.7 MILES PER GALLON OF REGULAR.

THE GC WILL SOON ADD AN 8-SPEED AUTOMATIC AND THAT SHOULD BOOST MILEAGE ABOUT 15%.

WE'VE HAD NO NOTABLE MECHANICAL ISSUES.

EVEN TIRE WEAR IS GOOD AFTER 28,000 MILES.

THE QUADRA-TERRAIN FOUR-WHEEL DRIVE CONTROL SYSTEM WAS MORE THAN A MATCH TO THE HEAVY RAINS FROM HURRICANE SANDY.

IT LOOKS LIKE ANOTHER OF OUR DRIVERS' CHOICE WINNERS IS SERVING US WELL, AND SOON IT WILL BE EVEN BETTER.

WE'LL SEE HOW WELL WE'RE BEING SERVED BY THIS MAZDA CX-5 CROSSOVER AND THE NISSAN LEAF EV, ON OUR NEXT MOTORWEEK LONG-TERM ROAD TEST UPDATE.

TIME NOW TO CHECK UP ON THE LATEST MOTOR NEWS, SO LET'S HEAD INSIDE WHERE YOLANDA VAZQUEZ HAS THE SCOOP.

Yolanda: THE INSURANCE INSTITUTE FOR HIGHWAY SAFETY HAS RELEASED ITS LATEST RATINGS FOR BEST-FITTING BOOSTER SEATS, AND THE RESULTS BRING GOOD NEWS TO PARENTS SHOPPING FOR THESE CRITICAL SAFETY DEVICES.

15 OF THE 17 NEW CHILD BOOSTER MODELS INTRODUCED FOR 2012 HAVE EARNED THE TOP RATING OF "BEST BET" FROM THE INSTITUTE, AND ONLY TWO: THE SAFETY FIRST ALL-IN-ONE AND SAFETY FIRST ALPHA OMEGA ELITE, WERE NOT RECOMMENDED BECAUSE OF IMPROPER SEATBELT FIT.

IN ALL, 47 BOOSTERS - INCLUDING NEW MODELS AND OLDER DESIGNS - MADE THE BEST BET LIST, FIVE SEATS WERE RATED AS A "GOOD BET," AND 37 OTHERS FELL INTO THE CATEGORY OF "CHECK FIT" -- WHICH MAY PROVIDE A GOOD FIT FOR SOME CHILDREN, DEPENDING ON THE VEHICLE.

BELT-POSITIONING BOOSTER SEATS BRIDGE THE GAP FOR KIDS 4 TO 8-YEARS-OLD WHO HAVE OUTGROWN HARNESS-RESTRAINT CHILD SEATS, BUT ARE NOT BIG ENOUGH TO PROPERLY USE ADULT LAP AND SHOULDER BELTS.

LIKE THE NAME IMPLIES, BOOSTERS RAISE THE CHILD UP AND HELP TO POSITION A VEHICLE'S SEATBELT ON THE CHILD TO PROVIDE THE BEST PROTECTION IN A CRASH.

LAP BELTS SHOULD LIE FLAT ACROSS A CHILD'S UPPER THIGHS, NOT ON THEIR STOMACH, WHILE SHOULDER BELTS SHOULD FIT SNUGLY ACROSS THE CENTER OF THE SHOULDER, NOT SLIDING OFF OR RIDING UP ON THE NECK.

NOW, KEEP IN MIND, THESE RATINGS DID NOT MEASURE THE CRASHWORTHINESS OF THE SEATS, JUST HOW WELL AND CONSISTENTLY THEY POSITION THE SEATBELTS.

A COMPLETE LIST OF BOOSTER SEAT RANKINGS CAN BE FOUND ON THE IIHS WEBSITE.

AND THAT'S IT FOR THIS WEEK'S MOTORNEWS.

John: WE'VE ALL FANTASIZED ABOUT FINDING THAT SUPER RARE CAR IN A BARN SOMEWHERE.

AND WHILE MANY OF THOSE STORIES THAT YOU HEAR ARE JUST THAT, FANTASIES, AUTHOR JERRY HEASELY DOCUMENTS 30 REAL ACCOUNTS IN HIS BOOK JERRY HEASLEY'S RARE FINDS.

JERRY HAS TRACKED DOWN MANY UNEXPECTED DISCOVERIES THROUGH THE YEARS, AND WRITTEN ABOUT THEM FOR MAGAZINES SUCH AS MUSTANG MONTHLY, VETTE, AND MUSCLE CAR REVIEW.

EACH STORY IS PACKED FULL OF HISTORY, AND INCLUDES LOTS OF COLOR PICTURES THAT DOCUMENT THE UNCOVERING OF THESE RARE PIECES OF AMERICAN METAL.

MAKING THIS BOOK A TRUE MUST-READ FOR ALL OF YOU CAR SPOTTERS OUT THERE.

BACK BEFORE EUROPEAN LUXURY CARMAKERS GOT INTO SUVS, THEY MADE SLIGHTLY BEEFED UP ALL-WHEEL DRIVE WAGONS.

VOLVO HAD THE CROSS COUNTRY, BMW VARIOUS SPORTS WAGONS, AND AUDI, THE A6 AVANT-BASED ALLROAD.

BUT AFTER GOING FULL BORE INTO SUVS, AUDI, FOR ONE, FELT THE ALLROAD WAS NO LONGER NEEDED.

TURNS OUT AUDI FAITHFUL DISAGREE.

SO ITS BACK, AS 2013 MARKS THE RETURN OF THE ALLROAD.

SO, LET'S SEE IF ALL ROADS LEAD TO SUCCESS FOR AUDI AGAIN.

THE 2013 AUDI ALLROAD MAKES ITS RETURN TO THE "STATES" ON A SLIGHTLY SMALLER SCALE, HOWEVER, AS THE ONE NOW ARRIVING HERE IS BASED ON AUDI'S COMPACT A4 RATHER THAN THE MID-SIZE A6.

WE LIKE THE PURPOSEFUL LOOK OF THE 2-TONE EXTERIOR WITH ITS MIX OF DARK AND LIGHT.

THE AGGRESSIVE AUDI FRONT-END ALSO WORKS WELL HERE.

STANDARD HEADLIGHTS ARE HALOGENS, BUT XENON PLUS WITH AN UPDATED TAKE ON AUDI'S SIGNATURE LED DRLs ARE OPTIONAL.

ALSO STANDARD ARE ALUMINUM ROOF RAILS, STAINLESS STEEL SKID PLATES FOR THE FRONT AND REAR, AND A PANORAMIC SUNROOF.

THE REAR END SLOPES DOWN NICELY, AND THE WHOLE PACKAGE MAKES FOR ONE SPORTY LOOKING WAGON.

DESPITE ITS SHORTER LENGTH, THE NEW ALLROAD ACTUALLY HAS ALMOST 2 INCHES MORE WHEELBASE THAN ITS PREDECESSOR AT 110.4 INCHES.

GROUND CLEARANCE IS NOW FIXED AT 7.1 INCHES.

GONE IS THE ADJUSTABLE SUSPENSION.

STILL, AUDI MAKES NO OFF-ROAD CLAIMS FOR THE NEW ALLROAD.

STANDARD RIMS ARE 18s, WITH 19s IN SUMMER RUBBER AVAILABLE.

THE LONGER WHEELBASE ALLOWED AUDI TO MAINTAIN FRONT LEGROOM ALTHOUGH REAR BODIES SUFFER A BIT.

STILL, THE CABIN FEELS ROOMY ENOUGH FOR LONG TRIPS FOR FOUR.

OTHER THAN A FEW QUIRKS, LIKE THE HARD TO FIND TILT/TELESCOPING STEERING WHEEL CONTROL, WE HAVE NO COMPLAINTS ABOUT THE STUNNING INTERIOR DESIGN.

AS FOR LUGGAGE ROOM, BEHIND THE REAR SEATS THERE'S 27.6 CUBIC-FEET OF SPACE, 50.5 WHEN THOSE SEATS ARE FOLDED.

BOTH NUMBERS DOWN CONSIDERABLY COMPARED TO THE PREVIOUS ALLROAD.

A POWER LIFTGATE COMES WITH THE PREMIUM PLUS TRIM.

BUT THE SMALLER SIZE MAKES FOR MUCH BETTER GOVERNMENT FUEL ECONOMY RATINGS OF 20-CITY, 27-HIGHWAY, AND 23-COMBINED.

A HIGHWAY-HEAVY DRIVE NETTED US A GOOD AVERAGE OF 26.6 MILES PER GALLON OF PREMIUM.

STILL, THE ENERGY IMPACT SCORE IS JUST BARELY BETTER THAN AVERAGE FOR ALL VEHICLES AT 14.3 BARRELS OF ANNUAL OIL CONSUMPTION WITH YEARLY CO2 EMISSIONS OF 6.5 TONS.

ON THE ROAD, THE ALLROAD DRIVES VERY NEUTRAL.

LIKE MOST RECENT AUDIS, THERE IS A HEFT TO IT... AS IN NAILED TO THE GROUND.

BUT THAT'S WHAT YOU WANT IN A WAGON.

VISIBILITY IS NOT THE GREATEST, ESPECIALLY AT THE REAR WHEN YOU HAVE THE CARGO COVER FOLDED UP.

A SIMPLER ROLL-UP ARRANGEMENT WOULD HAVE BEEN MUCH BETTER.

HITTING THE TRACK, THE ALLROAD IS VERY RESPONSIVE, FEELING FAR MORE CONNECTED THAN YOU EXPECT FROM ANY WAGON.

IT'S EASY TO POINT AND SHOOT WITH A GOOD, SOLID FEEL.

STEERING IS BRISK AND LIGHT, WITH A GOOD BALANCE OF FEEDBACK AND COMFORT.

BODY ROLL IS HELD IN CHECK, AS IS THE TOP HEAVY FEEL THAT ACCOMPANIES MOST TALLER VEHICLES.

PROVIDING THE POWER IS THE SAME 2.0-LITER TURBO-4 FOUND IN THE A4 WITH 211-HORSEPOWER AND A VIGOROUS 258 POUND-FEET OF TORQUE.

BUT WITH THE STANDARD QUATTRO ALL-WHEEL DRIVE SYSTEM YOU DO TRADE THE CVT FOR A FINE 8-SPEED AUTOMATIC TRANSMISSION WITH TIPTRONIC SHIFT.

OFF-LINE POWER IS CERTAINLY ADEQUATE, BUT NOT MUCH MORE.

ACCELERATION IS LACKLUSTER WITH A 0 TO 60 TIME OF 7.7-SECONDS.

THE FULL QUARTER MILE PASSED IN 16-SECONDS AT 90 MILES-PER-HOUR.

SHIFTS WERE SURPRISINGLY SLOW AS WELL.

BRAKES ARE 4-WHEEL DISCS, VENTILATED IN THE FRONT, AND DID MUCH BETTER, WITH A SHORT 111-FOOT STOPPING AVERAGE AND MINIMAL FADE.

WHEN IT COMES TO PRICING, WE'RE REMINDED WHY ALL-WHEEL DRIVE LUXURY STATION WAGONS ARE NOT BIG SELLERS HERE THESE DAYS.

AVAILABLE IN THREE MODELS, ALLROAD BASE PRICES RANGE FROM $40,495 TO $49,695.

THE TALLER Q5 CROSSOVER STARTS AT CLOSE TO FOUR GRAND LESS.

WE APPLAUD AUDI FOR ANOTHER ATTEMPT AT SELLING SPORTY STATION WAGONS HERE IN THE U.S. AFTER ALL, SUBARU HAS MADE A GO OF IT FOR MAINSTREAM BUYERS, SO WHY NOT AUDI FOR THE WELL-HEELED?

BUT, WHILE MORE ENTERTAINING TO DRIVE, MOST AMERICANS WANT THE MAXIMUM VERSATILITY OF A UTILITY.

STILL, THE AUDI ALLROAD PLAYS TO A NICHE, AND WE PREDICT YOU'LL SEE MORE THAN A FEW ON SNOWY ROADS ON THE WAY TO THOSE SWANKY SKI RESORTS THIS WINTER.

WELL, I HOPE YOU'LL JOIN US AGAIN SOON FOR MORE MOTORWEEK, WHEN WE'LL TRY ALL-WHEEL DRIVE POWER OF A DIFFERENT SORT IN A VOLVO S60 T5.

THEN REV UP THE AWESOME REAR-DRIVE POWER OF THE SHELBY GT500.

UNTIL NEXT TIME, I'M JOHN DAVIS.

WE'LL SEE YOU RIGHT HERE ON MOTORWEEK.

Announcer: TO LEARN MORE ABOUT MOTORWEEK, TELEVISION'S ORIGINAL AUTOMOTIVE MAGAZINE, VISIT PBS.ORG/MOTORWEEK.

MOTORWEEK HAS BEEN BROUGHT TO YOU BY TIRE RACK.

AND BY... 3M, MAKER OF INNOVATIVE AUTO CARE PRODUCTS.

AGED OR YELLOWED LENSES REDUCE BRIGHTNESS OF HEAD, TAIL AND DIRECTIONAL LIGHTS.

THE 3M HEADLIGHT RESTORATION SYSTEM HELPS RESTORE LENS CLARITY FOR SAFER DRIVING.