Oh, let's become pretend
@Tidgney then!
Gr.4: The TT Cup is obviously a straightline monster with some turning capabilities, unlike the FF Mégane Gr.4 and the RCZ Gr.4 which can be best described as trying to turn a heavy cruiser thinking it can corner like an LMP1 car. Beware of burning your front tyres though, unless you are either Akagi or Tidgney.
Gr.3: The physics update should help this car become more accessible to beginners and gentleman drivers, which is Gr.3's target audience in the real world, so I can see this car becoming one of the stronger cars, if the tyre wear is friendly...despite the dialed down wear rates...
Gr.4: The Huracan is no doubt a beginner's first choice when it comes to Gr.4 cars. Excellent stability, great straightline speed, and great corner tossability if needed.
Gr.3: This is the Huracan's opposite end of the spectrum to the Gr.4 car. It bites and wants to kill you, albeit downplayed with the physics changes, but has that monstrous straightline speed to conquer Monza and Tokyo East (and Interlagos to some extent).
The only reason I can give to you is that you want to be like Shohei while also potentially battle against
@05XR8 in Oceania FIA races, plus that I can repost you KanColle Sendai liveries from yuyuko_0418 here for you to use...
Gr.4: The NSX is a good car if your focus is some speed at the cost of some turning ability, as its relevant ability which is its fuel saving capabilities becomes irrelevant with these FIA races.
Gr.3: Now a nice feeling car to drive with the physics changes according to Mr. SpaceDust and
@anthonyfa18, though tyre wear could be an issue, but then again it's been downplayed for this season. Its relevant ability that is shared among the oversteery MR cars is its amazing standing start capabilities, you are gone once you get past other cars getting their power cut by their TCS systems, but not a lot of races start from standstill anymore...