Do you want a GT3 as a daily driver every week........or do you want a daily driver which can outrun GT3´s on any track in the world......Of course caning a car round bends at 10 tenths for over half-an-hour is of the utmost relevance to road car users.
The question has been answered before. No the GTR can't endure as well as a GT3 RS but it's a better car for it. The first thing you'd need to do to change that is get rid of the AWD and there you go, you've ruined it straightaway. Buy a GTR and buy a proper lightweight race car with the difference if you're that concerned. Do you really want to cane a perfectly good road car to death on the track every weekend, especially if it's your daily driver?
I have made my decision....