I was a victim of this. Thankfully only minor damage resulted. I owned a Toyota minivan in Thailand and was in stop-and-go traffic, when suddenly the engine started revving up. I slammed on the brake and the engine downshifted to first to compensate, so I ended up bumping the car in front of me. After the bump (total stop?) the engine recovered it's sanity I guess, because the revving stopped at that point.

Naysayers will point out that the engine wouldn't rev up if I'm putting on the brake. That seems to be part of the symptoms of this bug. Oh, and I didn't accidentally push the accelerator instead of the brake, otherwise I wouldn't have just "bumped" the car in front.

Edit: I took the vehicle into the dealership and they said "user error".... whatever, no consumer protection in Thailand anyway, so I just moved on.