I really like the idea you've shared with us. Maybe most of the systems need to be more advanced so we can have more roleplay opportunities. I believe the system needs to be somewhat hard to pass, in that way we're going to avoid people who are just trolling. Having someone actually roleplaying such character would be great for the server.
Different parts of the vehicle should take more time in order to chop, like Turbo, Engine and brakes as it includes more complicated skills.
Overall I support the idea, however it will be good if we share more opinions and at the end build something more advanced and cool for roleplay.