Awesome trailer. 10/10
I spotted the south-east lighthouse from O'ahu (I've been filming there recently), as well as the roundabout at Mokapu Peninsula, also Diamond Crater in a few scenes, and once shot that looked similar to Eden Island (via Teleport in the first game). I also saw a new Car Wash building. Looks like the car dealers will be availble during night-time in game (I guess I'd work late if I had an appointment to sell a car worth 6 figures) :)
The police car livery looks unfinished, and they appeared to be chasing just the one car (didn't see other racers there), but at least we saw them. House customization looks simple but good. The car engines sounded very nice. I also heard some proper brake squeaking noises there instead of tyre-skid noises.
Edited the first post with the new info, thanks Cuban.