Polyphony still doesn't know how to add every car in the game as a rental car for Arcade Mode. That has been by far my biggest criticism and I want this to finally be fixed. Give everyone a chance to drive one of of anything that is featured in the game for free, right off the bat as opposed to only eight rental cars.
Sure, adding all the extra cars, tracks and all that other stuff may be nice, but I could care less about them due to the fact that there are still only eight rental cars in Arcade Mode, which are the following cars:
Mazda Roadster S '15
Toyota GT86 '15
Volkswagen Golf VII GTI '14
Alfa Romeo 4C Launch Edition '14
BMW M4 Coupe '14
Lexus RC F Gr. 4
Mercedes Benz #29 AMG Team HTP Motorsport AMG GT3 '16
Mitsubishi Lancer Evolution Final Edition Gr. B Rally Car
All eight of these cars as opposed to the over 200 and growing car list.
I mean look, GT Sport's mainstream competitors (Forza, Project CARS and Assetto Corsa) allow you to drive anything, anywhere, right off the bat, in their single player modes.
Let GT Sport develop a similar system to Forza, where in Arcade Mode, you can still drive your garage cars, but from there, they better make sure every single damn car is playable for free as a rental car. If not by this update, then the next one, then if not, the one after, and so on and so fourth.