Late reply, but I did find the thread where I found the original techdemo if you’re interested. I’m pretty sure the file is on my dead laptop, but this is where I originally got it, and although it’s a mediafire download which I really don’t like, I had no issues with it. https://www.beamng.com/threads/tech-demo-v3.14951/ About halfway down the first page you’ll find it.
I actually have the old techdemo. Would you mind telling me what you looked up to get that mediafire? or if you could salvage thay. and yes, very late, ive been inactive but glad to be back
cool! ive been looking for 0.3.0.5 for three months. the closest one i got was 0.3.0.3, but the grand marshal is a bit modded. would it be possible for you to somehow give it to me?