When we built the house 30 years ago the garage floor was "Stained" with H&C xylene and has been flawless since. It matches our roof tile. We considered a fancy floor but this is a true work shop. Actually many of those epoxy floors are VERY slippery when wet so not good in many ways.
The garage is fully insulated as well. With a commercial dehumidifier we actually do not need A/C. It warms up if you pull in two hot cars but otherwise is comfortable to do projects even in summer heat.
I considered rebuilding my GMC Yukon Denali engine as was done by others here. 'Would have been a good project. I just happened, by chance, to walk up to this RR Cullinan and, well, the rest is history.
Ali