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Watch this week's Top Gear America used-car challenge

Top Gear America is back for the penultimate episode of the first season. Used car challenges were some of the highlights of the original UK edition. In our exclusive clip, Tom Ford, Antron Brown and William Fichtner run their $7,000 sports cars in a drag race. As expected, the trio chose very different cars for the challenge. Watch the video to see if a Subaru WRX's all-wheel drive can overcome a power deficit to beat a Ford Mustang and a Chevy Corvette. Brown and Fichtner also spend some time relaxing with an old Jeep Wagoneer. Like them, we're really hoping Jeep will bring back the Wagoneer nameplate. Brown also drives a Maserati Levante, proving that not all family cars need be boring. This week's guest star is actor, rapper and former host of Pimp My Ride, Xzibit. Top Gear America airs Sundays at 8 p.m. Eastern on BBC America. Related Video: Celebrities TV/Movies Chevrolet Ford Subaru Top Gear exclusive top gear america

Ford reveals EcoBoost-powered Riley prototype for Daytona 24

It's not the first time Ford has participated in the Daytona Prototype class as an engine supplier, but in revealing this new EcoBoost V6-powered Riley Technologies prototype for the new United SportsCar Championship, Ford is making a statement: "We want to show Ford EcoBoost's capabilities as an engine that provides both performance and fuel economy, on and off the track," says Jamie Allison, director of Ford Racing.
In addition to supplying the 3.5-liter twin-turbocharged V6, Ford had its production designer Garen Nicoghosian give the racecar brand-inspired design cues with support from Ford Racing chief aerodynamicist Bernie Marcus.
The car is scheduled to compete at next year's Rolex 24 at Daytona on January 25-26, but before that, Michael Shank Racing is working with Ford at another goal. Driving his Ford Thunderbird, NASCAR champion Bill Elliott set the track's top speed record at 210.364 miles per hour during a qualifying run for the Daytona 500 - way back in 1987 -- and Ford thinks it's about time for that record to fall. What better time the introduction of this new Ford-powered Daytona Prototype? Michael Shank Racing plans to use the twin-turbo V6-powered racer to beat Elliott's record, and it expects to begin prepping for the top-speed run on October 9. Scroll down for the full press release below on Ford's latest race effort.

Consumer Reports criticizes small turbo engines for misleading performance, fuel economy claims [w/video]

Consumer Reports has taken aim at at small-displacement, forced-induction engines, saying the powerplants don't manage to deliver on automaker fuel economy claims. Manufacturers have long held that smaller, turbocharged engines pack all power of their larger displacement cousins with significantly better fuel economy, but the research organization says that despite scoring high EPA economy numbers, the engines are no better than conventional drivetrains in both categories. Jake Fisher, director of automotive testing for Consumer Reports, says the forced induction options "are often slower and less fuel efficient than larger four and six-cylinder engines."
Specifically, CR calls out the new Ford Fusion equipped with the automaker's Ecoboost 1.6-liter four-cylinder engine. The institute's researchers found the engine, which is a $795 option over the base 2.5-liter four-cylinder, fails to match competitors in acceleration and served up 25 miles per gallon in testing, putting the sedan dead last among other midsize options.
The Chevrolet Cruze, Hyundai Sonata Turbo and Ford Escape 2.0T all got dinged for the same troubles, though Consumer Reports has found the turbo 2.0-liter four-cylinder in the BMW 328i does deliver on its promises. You can check out the full press release below. You can also read the full study on the Consumer Reports site, or scroll down for a short video recap.