My boys are going to go daft when they see this... the Nerf Battle Racer has been released. It's a 'Mad Max' style Go-Kart made by Nerf, so you know there will be foam bullets involved too. It's not available in many places yet. Very have it for 'just' £250, whereas Littlewoods are a very steep £310 for it.
The seat is adjustable and the Kart itself is made from a steel frame, so it should be durable. It features forward and reverse gears as well as a free-wheel function and hand brake.
It's actually made by pushchair manufacturer Hauck, so it should be good quality.
Is this worth £250? I doubt it... and I reckon that it's only a matter of time before the price drops in price. After all, would you pay over two-hundred quid for a Go-Kart just because it says Nerf on it?