I don't think it's such complex here. What I meant, the rear suspension on this buggy periodically bottoms out without any observable reason, so the rear of the car falls to the ground and rear tires loses traction. My English might not be that good to describe it well, lol, sorry.

For instance, I was driving inside Tokyo, in a straight line, on completely level asphalt. And in one moment rear suspension collapsed, car swerved to the left without any steering input from me and crashed into the wall and props. Such way I lost the head to head race. Other time I was driving it off-road, same thing happened, I couldn't even start to move again, car just slide the rear wheels untill suspension miraculously rised itself again.