Big from me. Really feel like cars would be used alot more then they are currently with a upgrade on some cars or just new cars!
You’ll need to suggest specific cars you want added just not link to the packs. Also what do you mean upgrades to the cars? What upgrades?
You can add perm upgrades at the car dealer for certain prices to customize your car even further cooler wing cooler rims maybe take less damage whilist inside a car also eco reset is a good suggestion