Commercial Vehicles
This came up due to people abusing the tow trucks, but I've thought about it before so people could buy the "Mule" box trucks, tour buses or some of the liveried vehicles that are not currently available.
The driver would need a CDL to operate them legally, but dealerships could also require a valid business license for the buyer. This could also create a lot of 3rd-party RP with the potential for hijacking, player-driven hauling jobs & so on.
This would provide another benefit for the upcoming "Companies" in 1.0 and help them stand out a bit more, while also creating 2 separate levels of deterrent since both the driver and owner would be responsible for how they are being used. Of course revoking a business license would be for serious repeat offenders & likely create some court RP before that could happen.
Would be cool if you have to hook them up yourself, I generally speaking hop out the cab and ‘hook’ them up for fun anyway