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

Honda unveils supercharged CR-Z, 2014 Civic Coupe at SEMA

Hard to tell, but the supercharged tomato you see above represents a fundamental shift within Honda: it is the first car from Honda Performance Development with parts that actually make your car go faster. Honda Performance Development: "We're not just body kits and lowering springs anymore!" After two decades in actual racing development, perhaps it was time. HPD has built engines and chassis for IndyCar, American Le Mans Prototypes, Formula Atlantic, and the Continental Sports Car Challenge.

Noble M600 breaks cover

The first shots of the Noble M600 were released Wednesday. The imposing speed demon will get an eye-popping 650 hp. It will have a top speed of 225 mph and cost about $330,000, according to the U.K.

Mercedes-Benz CL gets a facelift for 2011

Three years after its introduction, Mercedes-Benz has given the CL a mid-cycle facelift, providing the big two-door with lightly altered bumpers--those up front with new LED daytime running lamps, reshaped headlamps, a more contoured hood, larger exterior mirrors with integrated indicators and revised tail-lamp lenses, among other detailed visual changes. More significant than the styling tweaks, however, are the changes underneath the hood, with the arrival of a new twin-turbocharged 4.6-liter V8 direct-injection gasoline engine--the first of Mercedes-Benz's advanced MoVe powerplants that aim to bring efficiency gains to its lineup. With 429 hp and 516 lb-ft of torque, the new engine delivers 47 hp and 125 lb-ft more than the naturally aspirated 5.5-liter V8 it replaces in the four-year-old CL500--enough to lower the luxury coupe's 0-to-62-mph time by 0.5 second to 4.9 seconds.