How to unlock Street Surfers and how to customise them.
Agree to take the Surfer for a spin and you will start the Surfin' the Streets substory.
Press down on your directional pad [NEED TO CHECK PC CONTROLS] to equip your Street Surfer.
This command will turn this feature on and off.
On the right side of your screen is your Street Surfer with its battery life being displayed beside it.
This will then take you into the customisation menus.