I would be very interested in talking to you about some things you might not have thought of I am involved with a project similar but a little more advanced if you check
http://gcart.rit.edu you can see some of the things we have been working on for the first step of our DARPA car.
Some of the things I am concerned about your project:
Loss of radio - now this won’t be a terrible issue using the innovation first controllers but you don't want one of the motors to keep going when you want them to stop so I would recommend a separate system of being able to "kill" the car remotely. There are a lot of ways to do this but it needs to be addressed
Motor meltdown - when it comes to FIRST robotics the use of motors from different walks of life is a fun challenge but when you are dealing with something so large scale you need the correct motor for the job. For breaking for instance I would recommend a linear actuator because that will much more reliable then the globe motor with a gearbox
Feedback - things like turning the car and speed need to be monitored during operation and I am afraid that if you don’t monitor it good control of the car can’t be achieved.
I am not bashing your project in fact I think that it is very cool and be very successful but I think there are a lot more issues that I think need to be addressed. cars can be dangerous things and proper control and preparations need to be made to ensure your safety and the safety of those people around where you operate this car...I would be glad to talk to you just drop me a PM on this board or Instant message me.....
Also we defiantly want pictures when you are done!
Good luck with your project
