The Endurance & GT3 car packs are on sale atm, as is the Track Expansion bundle.
And the Reiza bundle is on sale too, which is highly regarded as well.
It just doesn't contain your typical cars, or tracks, and is good for trying out something a bit different.
As for how the vr support is, I'd check the rF2 forum at RaceDepartment or Studio 397s' own forum. I haven't played it in vr in a while but it ran quite well when I did.
Only annoyance was that you couldn't have 2 separate gfx profiles for standard & vr gaming.
That might have changed now with a recent build, or the much fabled beta UI, but I'm not sure.