I'd like to see a new mode where we can drive our cars on some of the best roads around the world, like actual roads that weren't built just for racing. and maybe we could race on them too? but roads like that one in the episode of Top Gear UK where all three guys were driving American cars(Jeremy in the Corvette ZR1, James in the Cadillac, and Richard in the Challenger), and they were on their way to the Bonneville Salt Flats place, and they took a detour on that windy mountain-type road.
I'd like to be able to drive my cars in the game on roads like that, and not just pure racing circuits every time...