An engine swap should be a joyous occasion, but this mechanic turned the process into a nightmare for more than 70 owners — and was jailed for his efforts.

Over the years, you car's grille can accumulate an impressive coating of dead insects, mud, and other undesirable road debris.

A rare Nissan track car had one frustrating problem - after just a few laps, temperatures would spike and the engine had to cool down. Every typical upgrade had already been tried, but nothing seemed ...