Cars on Littletown

[Yonno]

Make it so that the chauffeur alone can spawn vehicles, and then perhaps consider getting a different taxi car, perhaps a smaller or older car model fitting the environment and atmosphere of LittleTown.

I don't see any problem in that. Vehicles are NOT a necessity for this map as you can literally run from one end of the map to the other within 2 minutes.
Not only would this decision render the Chauffeur actually useful (make that a first time), but it will also open up different sorts of TaxiRP and who knows what other things people might come up with it.

Sure, cars are nice. But they are definitely not needed in this map.