- A garage (both single player and online) where you can park cars and they don't disappear. Would just be fun to steal a few different nice cars and have them for whenever. All there was in GTAIV was the spot outside your house that can hold like 2 cars. I want something bigger.
- Cheats for online (for free roam) such as all guns, unlimited ammo, unlimited health, etc. Basically the cheats from the single player but in online private free roam. Just so if you're dicking around with your friends and want some extra fun. Of course there would be a setting to have them disabled.
- Tanks! 6 star wanted level should be the army after you with tanks, helicopters, and other army vehicles. And of course you can steal the tanks.
- More secret cars. Have a few more secret cars scattered around the city, like what they did with having the Sultan RS parked in that one set of bushes. Just like racing versions of standard cars would be cool. Plus there should be a secret tank somewhere!
- Be able to fly jets
- A lot more guns and crazy weapons (chainsaws, flamethrower, etc.)
- Better save sytem (not having to go to bed to save)
- Have a car customization shop in-game so you can upgrade your car a bit plus pick the paint job and whatever else
