Plastic cars can be great

Proper cars are made of metal. Plastic cars are inferior. Everyone knows that.

Of course, that's rubbish. Some of the world's greatest cars have had plastic bodywork, including every Lotus ever made, the Corvette, TVRs and a host of other machinery.

Modern-day engineers are turning to plastic more and more. For example, BMW's new 6 Series has many panels made of plastic.

Here are 20 cars with glassfibre bodywork - some of which will shock you.