You really want to "bash" a 350+ quid car?!?!?!?!?!?!
Wouldn't you be better off buying something else to trash? It would seem a bit of a shame to take a piece of kit meant for racing and then drive it around pointlessly? Look at something without the hefty price tag for tearing up the park like a Durga or so which would be a nice racer too...
In other words please don't take a car that has had very carefull developement to make it as fast as possible around a track and waste it bombing it around busting it...