Hello Rantam. Thank you for your response.
Yes, I loaded the complete package and I ran the latest UI, and it is very nice, and I like it, just not as my full-time general rFactor interface.
Here's my issue: I am new to sim racing... only about a month. I picked up several sims (GTL, GTR2, rFactor, and GRID) intending to choose a good one that has a future and stick with it. rFactor qualifies in spades in that regard. What sets rFactor apart from all the others is it's "community-developed" flavor. This also means it will have staying power and future longevity.
rFactor's general method of operation, and its big attraction, is that you can add cars, trucks, and all sorts of other vehicles, and tracks, and just drive them! With other sims, as far as I know, you are restricted to what came in the box.
GRID seems pretty good, but it's not a full sim, and GTL and GTR2 are already at their "end-of-life", something I didn't know until AFTER I bought them. I bought GTL because I grew up with those cars, and eventually owned (and sold) a couple of them. But GTL is so thoroughly outdated for the modern PC that it will have to stay on my shelf.
Enter the Historic GT Mod for rFactor. Problem solved in terms of getting to drive and experience the classic cars. I can now drive the cars of my time, and run them on a modern platform.
But I feel the UI goes a bit too far because it is tightly-coupled to the use of the cars. It changes the interface for ALL of my cars in rFactor, not just the Historical cars. The UI forces a "transport in time" back to the 60's in order to drive the cars. It's nice, and it's cool, and it works great, but it's simply not what I want in terms of ALL of my cars. And I don't want a second install of rFactor.
As a long-time software product developer myself, I am here to tell you that adding flexibility (optional UI installation) to a package only adds to its popularity, never detracts.
One other question: I haven't looked, but when in the garage, can I install modern-day upgrades to the Classic Cars, like radial tires for example, or better brakes?
Here's why I ask: If I actually owned one of these cars today, there are generally two modes for me to enjoy that car: Enter the car into classic-car contests for judging, earning points and awards and pride, or simply driving the car around town on nice days. They are somewhat mutually exclusive. I am more inclined to keep the car as a "driver", and that means I am going to use, for example, radials instead of bias-ply tires, and maybe a modern hot ignition, and better brakes, all for reliability and safety. If I were going to take the car to the track (against my better judgement), I would certainly do those things. These improvements don't detract from the value or experience of the car at all, and besides, we always save the original parts.
You have done excellent work!