This is still a bit of a WIP but I feel like I could go on tinkering and polishing for months so here it is. It's drive-able and the model is mostly complete so I thought I'd release it for anyone who shares my fascination with this era.
Physics are largely guesswork, partly through lack of information, partly through lack of knowledge on my part. I went so far as ordering a back issue of 'The Automobile' from March, 1983 because it had an article from Paul Foulkes-Halbard about his type 32 but aside from the wheel size and some pictures showing a bit more detail I didn't find anything I didn't already know. Frustrating but I think it's better to have something you can improve and make more accurate if the chance arises than not to bother at all.
I've added an invisible front wing that you can set if you want to experience the lift the car was said to generate at high speed, it's off by default because I've always felt a little dubious about that story but it's there if you want to try it, makes every fast corner a little adventure Also made a riding mechanic as that was the way at the time but I couldn't find a good way to give him some movement, make him look less like you're taking a corpse for a drive so I've removed him for now. Might add him back and make it a set-up choice if that seems more immersive.
Skins are the race numbers and reg. plates of the Bugatti team in the 1923 French Grand Prix. Sound is from actual Bugatti straight 8 engines, although I don't feel I've quite captured how vicious and snarly they sound in action.
My first mod, learnt an enormous amount in the process but I still have a lot more to learn so I know it's not perfect. Hopefully, people will find it as fun and immersive to drive as I do but I'll be happy to hear any constructive criticism and make changes to future versions.
P.S. I've been working on some opposition too. Got carried away and started this not long after the Bugatti so it's nearly done now.