The Press E messages feel a bit large dominating the screen, especially if it is something that might be optional, such as if the player may not want to get in the car. The car driving was a bit odd. When going at an angle and reaching an edge the car turned into the side, even if it was mostly angled away.
I like the idea of having packs, with only the basics in the core. It allows for using what you need, but not being overwhelmed with lots of extra you don't. Movement, at least for controlling a person, should probably stay in core, though possibly having some packs for specialized movement options, such as when using air or space vehicles.