BMW 507 ‘57 - The most likely addition I believe, as a European classic road car, a GT6 premium car and because of its link to the recently added BMW Z8.
Chevrolet Camaro Z28 ‘69 - To keep the new Shelby GT350 company. It was a premium in GT6, but the model is rather old so it would probably require a bit more work.
Daihatsu Midget II ‘98 - This is my guess for the returning standard car of the update. Mostly because it’s Japanese and because the Midget is iconic for Gran Turismo. However, it might just as well be an early 90’s Honda Civic instead.
Ferrari 430 Scuderia ‘07 - To fill the Ferrari quota. Perhaps not the most obvious pick, given that the 365 and the 250 road car remains to be added. But four classic cars in a single update seems a bit unlikely, so the ‘07 Scuderia is where I landed.
Mercedes-Benz 300 SL ‘54 - Let’s face it, it’s only a matter of time before this classic gets added.
Nissan Leaf ‘11 - Needed a car to fill the Gr.X quota, the Asian quota, the premium quota, the newer-than-1990 quota and the N300-or-less quota. The Leaf fitted that hand like a glove.
Toyota Supra ‘19 - Gran Turismo has had a long relationship with this car all the way from its early concept stage. Of course it needs to be added.
VW Polo GTI ‘18 - A European car newer than 1990, new to the series and in N300 or less.