Well, not entirely true: Huminori Watanabe is a plumber and he drives a Nissan Skyline KGC110 GT-R imitation.

If you look careful enough you will notice this KGC110 has a SOHC L20A or L24 inline six and not the DOHC S20 that featured in the GT-R. Still a very cool car to do your plumbing in.