Honda Dualnote
The petrol-electric Dualnote featured cutting-edge tech, but it looked like a dog's dinner
Volkswagen W12
Capable of more than 200mph, the W12 would have made quite a supercar
Lotec Sirius
After its previous one-off, Lotec came back for more, but the Sirius would also be unique
BMW xCoupé
With its startling asymmetric design, the xCoupé looked more radical than it was
Audi Avantissimo
The Avantissimo could have been the world's first production luxury estate, but it wasn't to be…
Mercedes F400 Carving
The F400 Carving looked bonkers, but it was a deadly serious testbed for cutting-edge tech
Toyota FXS
Using Lexus SC430 running gear, the FXS could have been a great boulevard cruiser
Fioravanti Vola
With its neat styling and radical roof design, this could have been a landmark sports car…