Colin Furze's Driveable Hot Tub

Insane inventor Colin Furze (previously) has built such a reputation that now he's being paid to bring ridiculous tech to life. In his latest stunt, he covered a BMW with a lawn (artificial turf), sealed it up and filled it with water, and installed a barbecue grill on the back. Silly? Yes, and a lot of fun. The car is an ad for Google, so they provide Furze with the raw materials for the hot tub car.
Watch Furze drive around, splashing his bathwater all over the road. Oh yeah, the interior also has water jets, to which he adds bubble bath soap! Now try to imagine what happens when they grill burgers behind a bubble bath. This is the "fun" video. In case you are wondering exactly how he sealed the car so well that it could be driven filled with water, this video shows the process, and this video covers the other accessories. (via Laughing Squid)