Lego Car

hey guys im new here and was wondering I have to do a final year project for college and i want to make a self driving lego car using location sensors etc and a chip now the arduino seems to be a great idea but ive looking at gumstix as well i was just wondering what would suit me better?

I don't know anything about gumstix, but many people have used Arduino as the brain in various autonomous cars, so there should be lots of startup info available.