Peugeot always has a different view when it comes to concept cars, but the company's offering for Frankfurt is further than usual into left field. It's a two-seat open-topped sports car - with just three wheels. Although Peugeot says the car, called the 20Cup, "reveals a number of technological advances that will feature in future models in years to come," it's unlikely that a single driven rear wheel will be among them.
What will be among them is the 20Cup's engine, the first fruit of a collaboration between the French firm's parent, PSA Peugeot Citroen, and BMW. It develops 170 hp and should propel the lightweight concept very quickly.
The three-wheel configuration isn't new or unique; British specialist manufacturer Grinnall has been building and selling such vehicles for some years now, using BMW motorcycle engines that push the compact little car to 100 mph and beyond with outrageous acceleration.