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

GM recalls nearly 15,000 Buick LaCrosse, Chevrolet Impala sedans

General Motors is recalling about 15,000 vehicles to fix two problems--reprogramming the electronic stability control in some 2012 Buick LaCrosse cars and rerouting the power-steering hose on the 2012 Chevrolet Impala. The automaker is recalling 10,344 Impalas to reroute the upper power-steering house that could fail because of heat from the catalytic converter. As a result, the hose sprays fluid over the catalytic converter, causing smoke and potential fire.

Novitec Alfa Romeo 8C Spider adds boost for a sensuous 600 hp

Novitec has laid hands on the near-perfect Alfa Romeo 8C to create the 8C Spider Kompressor, a car the tuner claims is the “most powerful street-legal Alfa Romeo of all time.” Heady words, but they're nicely backed up by a supercharged version of the 4.7-liter Alfa V8 cranking out 600 hp and 434 lb-ft of torque. That's up from approximately 450 hp and 346 lb-ft on a stock Alfa Romeo 8C Competizione. Tweaks supporting the force-fed mill include a water-to-air intercooler, custom injectors and revised fuel and ignition mapping, plus a variable stainless-steel exhaust system.

Mercedes SL63 AMG (2012) first official pictures

This is the new Mercedes SL63 AMG, a £110k roadster with 557bhp and 664lb ft of torque. Mercedes will reveal this monstrous open-top at AMG model at the Geneva motor show in March 2012. I’m up with Mercedes’ tricks – this Mercedes SL63 AMG doesn’t have a 6.3-litre engine, does it?