New Mahle Piston Ring Set (91.99 Mm, Standard), 11 25 9 071 606 on 2040-parts.com

BMW releases power kits for the 135i and 335i models

BMW 135i and 335i models can now be retrofitted with two new performance power kits for more muscle and speed. The Version 1 kit has new engine software to optimize performance, while Version 2 tacks on an auxiliary water cooler and radiator fan to keep the engine from getting feverish during extreme driving. With either kit, horsepower increases by 20 hp, to 320 hp, on both models, and torque jumps to 332 lb-ft for models equipped with automatic transmission.

BMW's new i concepts revealed

It was meant to be a modest, intimate affair for a select group of media. Yet as we flew to Frankfurt the day before the unveiling of BMW's i3 and i8 concept cars, it became quite clear that this was not to be the case. With hundreds of journalists flown in from all over, a live web broadcast to the rest of the globe, and, for the first time in history, the entire BMW board present in one room, project i is clearly vital to BMW's future product strategy.

Porsche 918 RSR concept (2011) first official pictures

Porsche opens orders books for 918 Spyder (2011)Porsche 918 Supercar hybrid to be builtCAR interviews Porsche's R&D boss Wolfgang Durheimer (2011) Two of 2010’s most exciting cars were the Porsche 911 GT3 R Hybrid racer, and the Porsche 918 Spyder concept car that previewed Porsche’s hybrid successor to the Carrera GT supercar. What do you get when you mix the two together? Answer: the new Porsche 918 RSR, just unveiled at the 2011 Detroit motor show.