Volkswagen W12
Capable of more than 200mph, the W12 would have made quite a supercar
Porsche Boxster
The Boxster saved Porsche, but the concept was much more enticing than the production car
MCC Smart Eco-Speedster & Eco-Sprinter
The Smart brand has led a troubled existence, and this is where it all started
BMW 600
The 600 was meant to save BMW. Instead it just pushed BMW deeper into the mire
Avolette Record Deluxe
Egon Brutsch produced one microcar after another, but none ever sold in volume
Goggomobil Dart
The Dart proved that you don't need lots of power to have tremendous fun
Isdera Commendatore 112i
The Isdera Commendatore 112i was meant to go into production, but just one was built
Opel Maxx
In the mid-1990s, the Maxx was GM's vision of the future of urban motoring
Smart ForSpeed
Smart created an electric sequel to its bonkers Crossblade, which sadly remained a one-off
Kleinschnittger F125
The Kleinschnittger F125 looked more like a fairground dodgem than a proper road-legal car
Mercedes F300 Life-Jet
Why have four wheels on your wagon, when three will do just fine?
Cuno Bistram
This one-off home-built single-seater took minimalist motoring to the extreme