What's the best sub £4500 car for towing a caravan with special reference to reliability? I've been told 4x4's are the way to go from friends who tow however some people swear by a good RWD estate like a BMW 5 Series. With twin 3-year-olds space is a must however the vehicle must be reliable. I'm not too fussed on economy or refinement within reason as the vehicle will only be used once a week and maybe at the weekend throwing a few bikes in the back.