They do. Black and sandstone but at the higher price of $1.94 sq ft.
While it's def the easy way tp go, not so sure how it would handle cars moving on it and shifting.
I had these in my last 2 garages. No problems with vehicles on it, including those with high performance summer tires (in my case, Potenza RE-11 and Direzza Sport Z1 Star Spec). They can stain from sticky tires if you don't topcoat them. Topcoating recommended (water-based flexible stuff if you're not going to adhere the mat to the floor).
Where you get into trouble is using the floor jack. No denting from mine, but the floor jack could stretch it as I jacked up the car. Not a problem if you adhere the mat to the floor. I used to just put a single PVC tile under the floor jack to prevent the stretching.
I like them a lot. They're comfortable to work on, and the lack of seams makes them easy to clean. Sacrificial top coat prevents them from staining, and will let you clean off most things (including paint overspray).