Not going to accuse, I will only state my
theory : RH V tire, this will
show as RH on replay, the tire gives better traction and braking, but cornering remains the same with RH tires - as per description in game. With a very skilled driver, it will be very hard to detect, maybe it will appear the driver can brake later, less and lose more speed quicker, then nail on the throttle earlier with better traction.
It will hardly raise suspicion as we would think it's the driver not the car.
The worst part is this : RH C/V tires can be
gifted, you don't need to know anything about hacking, someone can
give you the tire, and to the people who never knew hacking, they could consider it simply a secret tire and as long it doesn't break regs, they are probably feel fine with it.
IMO, the benefits of RH V would be felt more on the later sectors ( after sector 1 ), where brakes and early throttle means time gained. With this tire, first sector time won't be so different to legit drivers, but on later parts with a skillful driver that can extract the most of available grip, sector times would be lower I think
The RH V tire gives better lap times remains to be proven works on FGT TT, but I invite anyone who has access to FGT and RH V to test and compare it with RH.