Porsche is set to expand their Panamara range with a new high performance GTS version, which will be positioned above the Turbo version.

Details are scarce at the moment, but according to reports, the GTS will have more than 500bhp, and better the Turbo's 0-100km/h time of 4.0 seconds. Another major change is to the suspension, with the Turbo's heavy air suspension system to be replaced by a traditional coil spring setup.

Porsche is also said to be working on a diesel version of the Panamera. If it does go ahead, the car will probably use either a modified version of the Cayenne's 3.0 litre V6 with 240bhp, or the 4.2 litre V8 from the Audi A8 which produces 322bhp.