The development of a new prototype by Dr. Ing. h.c. F. Porsche AG, Stuttgart, for customer racing in the LMP2 (Le Mans Prototype 2) category of the 2006 American Le Mans Series, which was announced mid-April, now enters the decisive realization phase. The first functional tests on Porsche’s test track at the Research & Development Centre in Weissach have now been successfully concluded. This marks the beginning of the testing phase for the new racing sportscar which is one-hundred percent Porsche designed and constructed, from the carbon-fibre Kevlar body to the newly-developed engine, the chassis and power-train through to the suspension.

The prototype is powered by a newly-developed 90-degree V8 endurance engine, fitted with air restrictors complying to ACO regulations, delivering around 480 hp from a 3.4-litre capacity. The lightweight power plant features a very low centre of gravity, four valves per cylinder, a dry-sump lubrication system and single cylinder throttle valves.

The six-speed sequential constant-mesh gearbox with a triple-disc carbon fibre racing clutch is a structural part of the chassis and is operated by a shift system on the steering wheel. Like the Porsche Carrera GT, the new prototype’s monocoque chassis is constructed of carbon fibre. Attached to this extremely strong yet lightweight framework is a front and rear double-wishbone suspension, with adjustable springs, anti-roll bars and four-way shock absorbers.