Small but powerful roadster from German specialty marque debuts with no doors, roof or windscreen.

German specialty marque Wiesmann has brought the Spyder Concept to the Geneva floor.

The Spyder is retro-looking roadster, smaller than the MF4 Roadster which was unveiled in Geneva two years ago. Also, the Spyder has no doors, roof or windshield. It's not necessarily what you would call a go kart but the word kart somehow demands to have something to do with this vehicle.

With a kerb weight of less than 1000 kg (2205 lbs), it accelerates from 0-100 km/h less than 4 seconds and hits a top speed of approximately 290 km/h (180 mph). Responsible for this performance is a 4.0-liter V8 generating 414 bhp (420 PS / 309 kW).

Wiesmann describes this concept as a feasibility study, designed to be "powerful, ultra-light and purist." As Friedhelm Wiesmann says of the car, "We want to test the marketability of such cars in Geneva. The feedback of customers, partners and experts has high influence on the consideration of advancing the Spyder model."

If that feedback is positive enough, from people with the means to make their feedback mean something, then Wiesmann foresees taking the model to production with sales beginning next year (2012).

Wiesmann Spyder concept arrives in Geneva