Wow. You guys like a lot of room between cars. 4 cars on a 3 lane digital track? If there's a really nice best line through those three lanes, then maybe, but still, at 100', the cars will still be really spread out.
I like it tight and challenging. 6 cars on a 55 foot 2 laner is good for me. Even smaller works for my group. One of our tracks is right at about 50 feet. TONS of fun! I'd feel like I was running on analog with 3 or 4 lanes on 100' laps...
But hey, to each their own.
The electronics can all be removed and used in the next track if you decide you don't like the first one.