A lot of stuff, mostly giant robot has been mentioned before so i wont add to it, but I will give a shout to my #2 anime right behind Macross, Future Grand Prix Cyber Formula.
Fast cars, good music, entertaining and interesting characters that never gets as formulaic as most racing serious ive seen (Initial D) with the main character going up and down constantly and not always winning. Also car designs by Shoji Kawamori make it the win!