No, I wouldn't suggest a bra...the wind flapping it will buff away at the finish. Besides, I 'm not aware of one available for our cars. Just do as posted above...a nice thick coat of wax, and leave plenty of room between yourself and the car ahead of you to prevent rock damage to front end and windshield. Also, stop at a rest area every couple of hours for 5-10 minutes with the engine running...let's you stretch your legs, too. Other than that, just carry what you would in any other car: small set of hand tools, jug of water, jumper cables, air pressure guage, etc.
Happy Motoring!
Happy Motoring!