About the next car system.
Cars locations can be changed while server is running itself without restart in squirrel server so :
There should be some 20-25 "cant buy" vehicles ( all different), in the server. These vehicles can always be GTA'ed.
People can go to roxor, sunshine to buy cars for personal great use.
They would be able to deploy the "bought" cars near there homes. Will cost some cash ( $10,000), so they dont spawn it like in LW.
People can jack the owned cars, but with right set of tools, which can be bought from "Screw This".
Owners can buy car alarms to protect cars from burglery attempts. ( again have to buy it from "screw this"). + good locking system
Jacking cars will take time. The tools can be upgraded from "Screw this". ( upto level 15-20)
It will make a new busines grow good

Less "cant own" cars in street will make ppl use taxi : another good business will evolve.
Note additions : Making a mechanism, if a guy forgets to deploy car near home: like it spawns in a empty parking.
If something i forgot, i will jot it down together again.