Thanks guys. I will take look at both of these see if they might interest him.
Dirt series is really good for rally-themed racing. The driving mechanics are a tad different than other racing games (not good nor bad).
Driveclub is arguably the best looking driving game. There should be a free version for PS+ users. I think it's online only.
Formula 1 (F1 2018) series is, generally, the highest rated on Metacritic.