From the official Press Release:

Design

The styling changes significantly improve aerodynamic efficiency. The headlights are a new, narrowed design and now feature projector-beam units on Cayenne and Cayenne S.

Above: side by side, the 2007 Cayenne (left) and the previous model (2004 version)

Revised front air intakes improve cooling and, as a result, engine performance. The wheel arches are more heavily contoured, and the rear of every Cayenne now includes a diffuser-style apron and new roof spoiler.

Features

All the models have been given more powerful, direct petrol injection engines. These Direct Fuel Injection (DFI) power units lower the fuel consumption of individual models by over 8 percent (NEDC). In real driving conditions, savings of up to 15 per cent are possible.

The new Cayenne models can be further enhanced by the new Porsche Dynamic Chassis Control (PDCC) roll stabiliser system, that reduces body roll during cornering and counterbalances it wherever possible. When off-road, the system increases axle articulation for improved traction.

The new Cayenne will be in Porsche showrooms from February 24, 2007.

Every Cayenne owner will receive a Porsche Driving Experience, a combination of test track and off-road activities and studies in advanced road driving techniques.

The Euro-base price for the Cayenne is 43,300 Euros, while for the Cayenne S it is 55,800 Euros.

The Cayenne Turbo is priced at 91,100 Euros. In Germany, the Cayenne costs 51,735 Euros, while the more powerful S version retails at 66,610 Euros.

The top model Cayenne Turbo has a list price of 108,617 Euros (including 19 percent sales tax and country-specific requirements).

Engines and performances

The Cayenne with the V6 engine gains an increase in displacement from 3.2 to 3.6 litres which, combined with the advantages of direct fuel injection, delivers a 40 bhp (29 kW) power enhancement.

Additionally, the torque of the engine has climbed to 385 Newton metres (Nm) from 310 Nm. It can accelerate from 0 to 62mph in 8.1 seconds and reach a top speed of 141mph.

The Cayenne S now features a larger 4.8 litre, naturally-aspirated V8 engine, which produces 500 Nm (previously 420 Nm) of torque and power output rises by 45bhp (33kW) to 385 bhp (283 kW).

These higher figures translate into a 0-100 km/h time of 6.6 seconds and a top speed of 157mph. (Previous model: 6.8 seconds and 150mph.) 

The new Cayenne Turbo has a 4.8 litre eight-cylinder engine, boosted by twin exhaust-driven turbochargers, which now produces 500 bhp (368 kW) and 700 Nm (previously 620 Nm).

The Turbo can accelerate from 0-100 km/h in 5.1 seconds and has a maximum speed of 171mph. (Previous model: 5.6 seconds and 165mph.)

(Source: Porsche)