That is what's happening most likely. Cars we don't see are on the track, it's rare, but it's happened to me more than once. Suddenly careening off the track at twice the speed of sound, controller going crazy buzzing in my hand.
But there are also a TON of dirty drivers who NEVER use the racing line, block any passing attempts, or worse, let you get about 50% past them and bump you off the track. Even some clean racers can hit you by mistake. To me bumping a bit and contact is going to happen. After all this FF VW slides a bit...But you can tell when it's not incidental bumping.
Had a few good races in the 4:42 range and had a few nasty ones, with the same 6 or 7 racers. Even got a nasty brake check cresting the hill before the turns leading to the main straight away, 6 second penalty on lap two. I still caught back up and beat him, rofl. He left the room after, which was the only smart thing he did.
Btw...The stock yard was so simple, should have worked on in two minutes before thinking I was done at 500 cars. Now gaining credits is fun since I can buy all the cheaper cars and I'm going to attempt owning every car in the game. Gotta have goals, right?