Man's Birthday Cake/Groom's Cake ~ Tire Cake (With chocolate rather than yucky black fondant).
cakes with race track
Race Car Party idea using chocolate donuts as "Spare Tires" - the kids will get such a kick out of it
Awesome DIY Birthday Cake Ideas for the Homemade Cake Decorating Enthusiast
Start Your Engines.it's a Race Car Birthday Cake! - Mom vs the Boys