Top Gear Technology Centre P45 review

While it might be disguised as a suit of armour, the P45 is actually the world’s smallest car. The roof and windscreen close over your head like a helmet, and your arms poke out the sides so you can reach the wheel.

But it has lights, indicators, a number plate, and it’s passed all the government tests, which means you can drive it on the road, although the advantage of a car this small is that you don’t have to use main roads at all.

Instead, you take it on the train and – when you arrive in the city – there’s no need to use the tube or bus, because you have your car with you.