Intercomp Racing 100760 Adjustable Digital Valve Spring Seat Pressure Tester on 2040-parts.com

MPG or performance: It's a trade with turbos

Some automakers say turbochargers offer high fuel economy and quick acceleration, the best of both worlds. Well, yes and no. Turbocharged vehicles allow automakers to keep power output high while they downsize engines for better fuel economy.

Bentley Continental GT Hybrid?

Bentley Continental GT caught sporting gubbins that looks suspiciously like a Hybrid power train So far, Bentley has opted for Bio-Fuel as a good starting point for going ‘Green’, but if the spy shot you see here is anything to go by, it looks like we could be seeing a Bentley Hybrid before too long. Snapped in Spain, where many car makers do hot weather testing in Europe, this Bentley Continental GT is definitely sporting something major in the mechanical department that doesn’t fit with the stock car. The guy who snapped the car also said it was running very quietly – perhaps indicating it was in electric cruise mode.

Caterham introduces track-focused Supersport R

Caterham Cars in the United Kingdom is adding to its range of open-wheel, extra-light sportscars with the Supersport R. The R model builds on the Supersport trim with more power, interior upgrades and an 1,179-pound curb weight. The Supersport R is motivated by a 2.0-liter Ford Duratec engine making 180 hp and 143 lb-ft of torque.