Car spawner 1.1 is CLEO script that can spawn vehicles.
It has advanced configuration in .ini file, thus it`s deditaced for those who add cars to GTA SA.
Ctrl + Up and Ctrl + Down scroll up or down 20 vehicles.
3 - activates menu where you can select category of vehicles you want (cars, bikes...) So you can select what you want.
Advanced config in .ini file will let you to personalize many options.
More in Readme.txt