The SUVs will reportedly be using a version of the supercharged 3.0-liter TFSI V6 found in the Audi S4, with 325 horsepower and 324 pound-feet of torque. The crew at Autocar had a chance to ride along in a near-production Cayenne S hybrid recently and determined that the new machine could be a serious challenger to the new Mercedes-Benz ML450 hybrid as well as the class-leading Lexus RX450h. According to the Brit pub, the Porsche hybrid felt nearly as quick as the V8-powered Cayenne S, although the vehicle wasn't instrumented. The Porsche was a later stage prototype than a Touareg Hybrid that VW has been showing for some time and it appears the engineers have refined the engine's on-off transition, making the hybrid experience almost seamless. Expect all the details in two month's time.