I believe the increased gram/printer cap would probably be too over powered, but I think that custom job titles would be a cool addition for donor/supporter benefits. You could also allow cars to have different colors and custom names, which could be a great way to personalize your belongings and differentiate your car from others'. I'm also going to go out on a limb here and ask for a slight reduction of gas prices for donors/supporters. Even if you reduce the price by a dollar or two, the total price for filling up you car will be 1-2k less. I don't think that this will be too over powered as you can't spawn cars with crime, and maybe it will increase the usage of cars which I don't think would be a problem. Also, on an unrelated note, I think that cops should be able to eject players from cars if it is necessary, such as in the situation with the player that was banned for having a car in the police department. This rule would, of course, have major limitations that the devs/admins should settle on, but I think that in particular situations it would be useful.