Click here for more pics of the Techart Magnum

The world's most extreme Porsche Cayenne has just got wilder.

Techart's insane Magnum – their name for this hot Cayenne – is the company's most popular car ever; and has been given even more power for 2008.

• Experts at the German tuning house have squeezed out 620bhp – 120 more than the standard Cayenne Turbo

• That's thanks to Techart replacing the standard turbo, intercooler, exhaust and air filter with its own high performance parts

• All that adds up to a 0-62mph dash of less than 4.5 seconds and a 180mph top speed

• The Cayenne's looks have been beefed up with wheel arches which add 8cm to the super-SUV's width and huge front and rear bumpers

• A set of massive 22-inch alloys are wrapped in tyres which are capable of coping with the 180mph top speed

• Want to see it in the flesh? It'll be unveiled at the Frankfurt motor show in September

Click here for more pics of the Techart Magnum

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