Newer racing games have been getting criticized for re-using old car models for their games, namely the Forza games using models going back to the original X-Box (?, and it's usually Gran Turismo fans that are making those criticisms), but I don't mind them that much, since those models still look acceptable enough for the games today, compared to newly added cars to the games. And wouldn't GT fans complaining about re-using car models be hypocritical, since some GT Sport and GT7 car models were re-used from GT5?
However, the car models in Test Drive Unlimited Solar Crown, or at least the ones showed off so far in the demo version, do feel very off, although it's more because the graphics look like they're a 1 or 2 console generations old, and the game is VERY unoptimized, which in addition to the game's many other problems (i.e. it being always online, the game only having ~100 cars in a 2024 racing game, and it has a Battle Pass) does not bode well for the game at all..