If he was smart he would've never ever stated that he went to a race track with the car. IIRC every warranty states something along the lines of 'use on track will void warranty'.Yeah. There was a lot of misinformation and misunderstanding in that whole thing. In the video, Kid argues that redline should be ok as he bought a Hyundai race car. That argument might hold water. Hyundai found he exceeded redline in which case Hyundai is in the clear. It's a standard so it's easy enough to go over if you're an idiot (especially if you think the warranty you bought is bulletproof). Kind of hard to exceed redline while doing drag runs though unless you are a complete dunce or disabled the limiter. It's a lot easier on a road course.
IIRC correctly the GTR had a GPS that would flag to Nissan if an owner went to a track...but it's been years.