PORSCHE has fired up its second-generation Cayenne, this time giving the luxury SUV a more sporty character and dispensing with some of the more rgged features, such as low range gearing. As well, it has added a petrol-electric hybrid version - the first in the Porsche range. A diesel - more fuuel efficient that the hybrid - is also offered, along with the performance variants, a V8 and V8 Turbo.