well, sort of.
i still couldn't figure out how to restore the save so i just remade the whole thing from scratch.
note: i haven't found any images of the rear of the car, so i just went with a design reminiscent of the Pagani Zonda R there, considering that the car does like relatively similar to the Zonda Cinque (=streetlegal version of the R).
The only things left are the headlights, "passenger" compartment (it's too thin to be a standard two-seater sports car so i'm assuming it's a single seater), wing, the "stripes" i mentioned in the previous post, and a few other stuff...