Originally Posted by Read T

Yes. The cars you are reading about that get tracked without hurting their reliability are purpose built race cars, and are rebuilt and serviced much more than normal cars. Any normal car will be working much harder with negative consequences for reliability while on track. This could be anything from your bushings wearing out much faster, your suspension wearing out faster, you transmission and differential wearing much faster, and you engine probably taking a hit.

That being said, I track my car and drive it to work every day.