go for a cheap mini dv one. for that kind of use, it's not to important what to get. deffo get one with an analogue av input though, so that you can use a bullet camera from the likes of rf concepts. one of those strapped to the bumpe provides much more interesting footage than a std in car camcorder. it looks so much faster.

over here, it's possible to buy a reasonable jvc one for less than 300 euro.