cheap tow car, 5-8 year old mondeo or whatever, 3-4k. then 20k buys you a pretty baffling choice when it comes to fun cars, depends on personal taste etc. me personally something along the lines of a well spec'd caterham/westfield or build a bit of a sleeper project car, something simple, mega light, decent power. based on a lean cupra or mk1 focus or something. the worlds your oyster to a point. theres plenty of cheap 1/2 finished projects about.