A very simple map that I would be impressed to see bots racing on is Kantkho Island.. this is a circuit with no jumps, ramps or statics to traverse. just laps.. forever..
Im interested to know how you could keep a bot going round and round.. this is the strategic points stuff?
the cars are faster than normal and a bit drifty but 'boat' ai sounds very suitable in many ways. the maps in the download section and Id be happy to help out where possible!