Thinking about the car list.
I mean, people may whine about it having too many dupes (Which are almost entirely standard cars) and not the superduper modern cars like the Koeniggseggs and the one trillion Zonda Variants but this game has a car for just about every scenario and driving style possible.
From WW-II VWs, to the Type 1 Bug, the Sambabus. Classic supercars like the Miura, the 250GTO, the Stratos, Countach. Racecars of the olden days like the GT40, Mk IV, Ferrari 330 P4 and the Shelby Daytona and Cobra 427. Cars that never did anything like the Jag XJ13, to modern hatchbacks (Abarth 500, Mito, Golf and Scirocco R, Minis, etc), to kei cars, to the Superduper cars like the Huayaba, the McLaren F1, 16 Ferraris, most McLaren road cars, Astons and many more unorthodox and obscure cars like the Cizeta (Which is now premium). GT is in essence a celebration of the automobile, and has become more like this since GT4.
Good to know that Kaz and Co. really are enthusiasts.
Also, the body roll, and moving tyres on bumpy surfaces. The KTM X-Bow's suspension travel and movements are mesmerizing.