I love pirelli flooring and have worked in some places that have it, it is pricey but might be good for that sort of purpose but I don't know how it would be with heavy equipment on it, you might consider alternate garage -oriented flooring, I keep seeing some vinyl type flooring for garages in my local costco, it's basically a large rolled up mat, grey in colour with a metal checkerplate pattern, might be more at home in a garage and you could put it on both sides that way...

On the other hand, if pirelli is tough enough and you can afford it, I'd go for it.