Supercharged Porsche Hybrid

By dancurranjr On May 10th, 2009

porsche-cayenne-hybridThe Cayenne becomes the first Porsche to get a petrol/electric hybrid drivetrain. The SUV also has the world’s first hybrid using a supercharged internal combustion engine, currently used in the Audi S4 and A6 3.0 TFSI. The Cayenne Hybrid prototype previewed two years ago highlighted a normally-aspirated 3.6-litre V6.

The Cayenne S Hybrid’s 3.0-litre V6 develops 333hp – like in the Audis – and 440Nm. Together with the electric motors, the combined outputs come to 374hp and 550Nm giving the SUV a 0-100kph time of 6.8sec, fuel economy of some 11kpl and CO2 emissions of 210g/km. Porsche is promoting ‘output of an eight-cylinder with fuel consumption of a four-cylinder’.

The Lexus RX450h and Mercedes-Benz ML450 Hybrid first used this principle. The RX450h has a 299hp 3.5-litre V6 good for 7.9sec and 15kpl, while the ML450 Hybrid features a 340hp 3.5-litre V6 with 7.8sec and 9.4kpl credentials. The Cayenne S Hybrid’s optimum performance/economy balance is due to the ability of cruising with the combustion engine switched off at speeds up to 138kph.

The Cayenne S Hybrid will hit showrooms next year, although Thai sales have yet to be confirmed or will be limited if available. The ML450 Hybrid isn’t available in right-hand-drive yet, making the RX450h the only hybrid-powered luxury vehicle available in the Thai market so far at B6.33m. Expect the Cayenne S Hybrid to cost over B10m.

Economy of scale will improve when the all-new Panamera saloon goes hybrid within three year. Also due within this time frame are sister-models Volkswagen Touareg and Audi Q7. Not to be outdone by its competitors, BMW is preparing to join the hybrid race with the X5 and X6, whose prototypes have already been shown to the public at motor shows.

The Cayenne S Hybrid is not the first Porsche with an environmental conscience. Earlier this year, Porsche unveiled its first diesel-powered model: Cayenne Diesel whose 3.0-litre V6 engine was sourced from Audi. The 240hp unit is nearly as economical as Cayenne S Hybrid at 10.8kpl.

FYI: There’s a special 10% excise tax for hybrid-powered cars in Thailand. But those with engines over 3,000cc or 220hp are not eligible for the rate, so all the SUVs here must face the maximum levy of 50%.

SOURCE: Bangkok Post

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