I just tried these. Good URD cars, best thing that they are a set so they are balanced to each other. Nissan/Toyota liveries are already on RD. No Honda one yet. The default Honda "RATA" livery looks like there is some mapping problem for reflection or something on some body pieces(winglets and one of the rear cheese wedge). In VR the cockpit looks great. Physics wise they seem "right" for what they are, in that they are GT bodied prototype cars(right around the pace if a bit slower than the Hypercar from GRD, which seems plausible though I think Super GT car IRL might be faster.) I am kinda curious on the NSX since it feels more MR feeling(lighter steering more twitchy?) even though this era's NSX is actually a FR car? Might be just me.
The comparison with Natsuki's Nissan GT500 is more interesting. The URD cars are easier to drive on cold tire and faster than Natsuki's. Model quality wise though I think Natsuki's car is just as good if not a bit better?
The comparison to the recent free Supra on here, that Supra is actually pretty good, and I think faster. But again I think this being a pack might be easier for you to balance to make a grid with less effort...
Compare to Chivas' cars. I love Chivas' work especially since it focuses on the last era's Super GT cars that are pretty unique cars. Lots of work clearly goes into them, its just they are always WIP. These are more polished products but I hope Chivas gets them to the finish lines(multiple ones, since he has 2 eras of cars in work I think).