Wow! Have you visited his Facebook page? I found a link to it in his included #readme file.It's a really nice model. A little high-poly if I remember correctly, but AC handles that better now than it did at the time.
There's no reason it couldn't be brought up to spec with some attention to the physics and a few updates. A trip through the Content Manager's migration helper should get you back on the road.
In principle I'd be willing to update it, but I only did tires for the original and I'm not sure it's really my place.
It looks like he's building a complete 3D printed Lamborghini Countach!
No wonder he hasn't logged onto here in 2 years. Damn...I only looked at a few of his recent postings and came to post about it here before I forgot. I can't wait to check out the rest of his posts later today.