Hello and welcome here.
About this car, I know that many years ago there was a model in progress, which then was never finished. I didn't remember of one available at MMArchive, and it turns out to be one of the first releases by Matyii/Matyasd, which isn't so well done and it's before the oldest one available here on MM2X. It's converted from Forza Motorsport 3 game.
About MMArchive website, it's not working correctly giving an HTTP 500 server internal error, but its server is still online. There's a backup of all its downloads made by Aaro4130,
here's of the MM1 related files and
here's of the MM2 ones. It's pretty difficult search file names in them with the browser's text searching function, though...
Here's that Del Sol.