Swiss tuner Sportec's 600-horsepower SP600 Convertible shown in Geneva

Swiss tuner Sportec revealed its latest high-performance, no-expense-spared modified 911 in Geneva.  The SP600 Convertible may look more or less like a run-of-the-mill Porsche 911, but revised turbochargers, a sport exhaust and a revised intake boost the engine's output to 600 hp and 765 Nm torque.  A sport clutch, 20-inch Sportec SPR forged wheels and a "discreet but effective" body kit are also part of the package.  The aesthetic modifications include a new front spoiler and side skirts.  Carbon fiber is used in the rear apron and larger rear spoiler.

Sportec claims serious performance from the SP600.  0-100km/h takes 3.3 seconds, with 200 km/h arriving in 10.6.  Keep your foot in it, and the SP600 is good for 338 km/h.  Sportec also offers SP530 and SP680 variants.  

Gallery: Porsche 911-based Sportec SP600 Shown in Geneva