+ Besides saving parking places, bring back garages.
+ Add working windshield wipers when it's raining.
+ Keep my real car in the game, the Crown Victoria.
+ Bring back spike-mats / stingers which are used by the Police in GTA: SA
+ Use buses for public transport to enter as passenger (like taxies)
+ Add more dangerous areas (something like gang areas as in GTA: SA) where more people yield weapons.
+ Trucks should carry trailers (also civilians, not just yourself)