Spy shots: 2011 Porsche Cayenne SUV

Prototypes for Porsche’s next-generation Cayenne have been spotted testing in Germany on several occasions, revealing crucial details for the new SUV which is expected to go on sale by May 2010. First and foremost, we know the next Cayenne will be smaller than the current model although it will still share a common platform with the next-generation Volkswagen Touareg and Audi Q7, both of which are not expected to change significantly in size compared with current versions.

The smaller size of the new Cayenne agrees with Porsche’s desire to create a much more hard-core performance SUV than the current model, which has been criticized for being too heavy. The wheelbase will be shortened by almost 4cm, while the height will be reduced by about 2cm. Other details include a taller waistline and LED daytime running lights.

Like the current model, the Cayenne will be built alongside the Touareg and Q7 in Volkswagen Group’s Bratislava plant in Slovakia. Unfinished Cayennes will then be transported to Porsche’s Leipzig plant for final assembly.

Once again both V6 and V8 petrol engines will be on offer, including a turbodiesel option, as well as a petrol-electric hybrid powertrain to be shared with the Panamera sedan. Power will increase across the range over the current model’s levels but emissions and fuel-economy will be reduced.

Kicking off the range will be an Audi-sourced 3.0L V6 turbodiesel with about 240hp (179kW) on tap. This will be followed by a 3.6L petrol V6 with 330hp (246kW) and a 400hp (298kW) 4.8L naturally aspirated V8. The Cayenne S will get a 420hp (312kW) version of this V8 engine, while a 500hp-plus (373kW) twin-turbocharged V8 will be reserved for the Turbo model. Finally, the hybrid model will feature the 330hp (246kW) V6 engine coupled with a 45hp (34kW) electric motor powered by nickel metal hydride batteries initially and lithium-ion units further down the track.

All engines will include Porsche’s new direct-injection technology, and some could even be matched to the carmaker’s new dual-clutch gearbox. Expect to see 0-60mph times of less than five seconds for top end models and top speeds in excess of 180mph.