I haven't watched Tidgney's video yet, and I know he's a much better/faster driver than I ever will be, but I do not think it's possible to make a completely accurate tier list for GT Sport.
- Different driving styles will suit different cars -> Tidgney doesn't suit the McLaren Gr.4, but I got 2 wins with it when I used it in FIA last year (most in a season).
- BOP could be changed at any time -> Mazda RXV went from a backmarker straight to being OP this season. Vice versa for FF Gr.4.
- Different tracks suit different cars and there's no guarantee a season is going to be balanced to cater to all cars.
- Tyre/fuel multiplier can have a huge impact on competitiveness -> WRX Gr.3 normally is average in Interlagos, but due to being a fuel race it became OP in last year FIA finals.
- Some cars are better in quali, but bad in race with fuel weight/tyre wear and vice versa.
- Consistency vs high risk high reward -> do you pick an average car over the course of a season, or one that is meta in 1-2 races and useless in the rest? I can't drive the NSX Gr.3 to save my life, but I picked it because I knew it would be meta in the Spa Wet race this season. I duly won it and got 200+ points, even though my other races average low 100s.
- If you're an alien, you can be fast with any car -> Mitsubishi in EMEA this season is right up there even though it's widely regarded as the worst manu.
- If you're going for the WT, you better hope there are no other fast drivers who picked the same manu as you. If you go for a "quiet" manu, then you better hope there are fast enough drivers in the other regions to help pull the points.
So there are a LOT of factors, and it's gonna be different for each person, track and season. That's why I feel the best way is to test the cars out yourself. But at the end of the day, unless you're already a regular top split frontrunner it's not going to make too much of a difference to your end result. So moral of the story, just pick what you like and enjoy driving
👍