We specify commercial flooring for auto shops, restaurant kitchens, etc. You want urethane cement, 1/4" thick. Expect it to be around $10/sf installed. The do it yourself methods are not bad, but will damage/flake/peel over time. Dex-O-Tex TekCrete SL or similar.

I don't recommend tile in a garage. A point load is more likely to crack it, and it won't have the slip resistance that you want in most cases.