Nice review here of the Porsche Cayenne S Hybrid.
Let’s start with the numbers, as there’s a lot of them. Ignoring the Cayenne Diesel for now, the entry level petrol version of Porsche’s 4×4 comes with a 3.0-litre supercharged V6, good for 296bhp at 6000rpm and 295lb ft at 3000rpm. But the same engine in the Cayenne S Hybrid manages 328bhp (from 5500-6500rpm) and 324lb ft (from 3000-5250rpm), and then there’s the electric boost as well. The electric motor adds 46bhp and 295lb ft, and you end up with peaks of 374bhp and 427lb ft, the latter at a lowly 1000rpm.
Add in the eight-speed automatic, a stop/start system, clever thermal management of the engine and transmission, plus an aluminium-intense diet that’s cut an average 180kg from the kerbweight of the Cayenne and you end up with some very impressed figures. Like 6.5sec 0-62mph, plus a claimed 34.4mpg. The diesel guzzles less fuel (38.2mpg) but the electrified petrol powertrain means the S Hybrid achieves 193g/km CO2 (195g/km for the diesel). All of which makes this 2250kg SUV the cleanest car that Porsche currently sells.