Stuttgart, Germany  - Porsche will show off a more powerful 911 GT3 with the six-cylinder engine boosted by 15 kW/20 horsepower to 320 kW/435 hp and exterior details such as wider fenders and a pronounced rear wing at this year's Geneva Motor Show from March 5- 15.

Acceleration from zero to 100 km/h is listed at 4.1 seconds with a top speed of 313 km/h. Porsche did not reveal any fuel consumption figures.

Xenon headlights, LED taillights and electronic stability control are standard. A new feature is a variable damper system that can be adapted for the race track. Porsche is also offering an optional lift system that improves ground clearance by 30 mm, especially useful for garage entry.

It is available in European showrooms from May this year with prices starting at around 117,000 euros (150,000 dollars). (dpa)