Cars are looking very good from what I have seen so far.
Parking spots all around the world, drive the car with WASD, control things like lights, the roof etc. And yes, realistic traffic (which can probably be configured in the settings). And if you don't want that you can skip the ride or use local transport. I think there will also be scooters and bicycles from what I have seen in videos but they are not usable yet.
Now we actually have to take the time to travel into account when playing, the sims 4 just lets us teleport to work instantly which while it's convenient... is really unrealistic.
TS4 travel system might be unrealistic, but it's very practical. Realistic travel system and times is not practical if you are going to be moving a lot on the map and you can only play for a few hours on the weekend. I saw some reviews and the characters and towns look nice but being stuck in traffic in game is not nice especially if it's going to be a regular occurrence. Anyway, it doesn't look like they are going to have vampires and werewolves anytime soon.
