giacomomarelli:
Ip cameras cost a lot. Probably it is better to have a normal web cam for driving and in the fututre we'll buy something for recording in hq. Like go pro cameras.
While it's always nice to have a clear picture for navigation, standard quaility web cam is probably sufficient. Although you'd have to create your own water-proof housing here's an example of HD camera with a built-in microSD card drive and designed to be easy to interface with microcontrollers or other control circuitry. Something like this would at least allow you to record in HD for later access, even if a live HD feed is impractical right now.