I suppose it's pretty ok for track car, as long it is not seen on the road.

Mind you, polis & JPJ are 'online' shared info (if I'm not mistaken)

Sometimes they hang out at Sunway industrial area. (Ronda-Ronda) My friends car was stopped for routine check. His was legit car, he took his brothers car to sent for service in that area as his brother was outstation.

Just tapping onto their on board system, they can see the details & who's car it is registered /make.

Since his was a actual legit car, they let him go.

As I said, track cars weren't supposed to be driven on public roads. I think leaving it on track is perfectly fine.