Mad inventor puts a hot tub IN his BMW

The most luxurious cars in the world can do wonderful things when it comes to comfort. Heated, massaging seats with adjustable back, head and leg rests are certainly very relaxing, but Colin Furze, renowned YouTube inventor, has gone one further. He's actually put a hot-tub into a car.

We say 'put into'... what we mean is the car has become the hot tub. Furze started by waterproofing the inside of the E30 BMW 3-Series convertible, before beefing up the suspension to cope with the extra weight of the water.