This is not a recommendation .....but your £50 might well be better spent on something like this.

http://cgi.ebay.co.uk/RADIO-CONTROLLED-CAR-ROBOT-ROBOT-WARS_W0QQitemZ150096618854QQihZ005QQcategoryZ2565Q QrdZ1QQcmdZViewItem#ebayphotohostinghttp://cgi.ebay.co.uk/RADIO-CONTROLL...emZ15009661885 4QQihZ005QQcategoryZ2565QQrdZ1QQcmdZViewItem#ebayp hotohosting