Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series on 2040-parts.com

Report: Gasoline engine has big bang for the fuel-economy buck

A government report says improving the gasoline engine will yield huge gains for the consumer and the environment as automakers consider ways to improve fuel economy over the next 14 years. The Obama administration's technical assessment looked at four technology scenarios by which automakers might attain suggested CAFE goals of 47 to 62 mpg for cars and light trucks by 2025. The scenarios differed by the portion of an automaker's fleet that was accounted for by electrics, hybrid electrics and plug-in hybrid electrics.

Cross-country in a Corvette Stingray: Conclusion

The final leg of our cross-country Corvette trip took us from Detroit to Charlevoix, Mich. -- about 45 minutes north of our birthplace, Traverse City. Aside from the drivers on I-75 in metro Detroit -- who may be the worst in the world -- and the still-intermittent audio system, the ride was pretty uneventful.

BMW's Domagoj Dukec on the 4 Series Convertible [w/Video]

BMW's head of exterior design Domagoj Dukec has explained how the 4 Series Convertible's design sets it apart from the 3 Series in a new video. Dukec says that aside from the fact the 4 Series Convertible is visibly wider than its predecessor with an increased track and wheelbase, its design is unique. While describing the changes to features such as the kidney grille, headlamps and the lines running down the hood, Dukec also compares it to the coupé.