Command	Usage
/buy v.[ID/"Name"]	/buy "Sedan Saloon" or /buy v.9886
/cost v.[ID/"Name"]	/cost v."Sedan Saloon" or /cost v.9886

If you want to buy items by name, you have to use " " if the name contains a space bar. For example: /buy "Sedan Saloon ". If you use /buy Sedan Saloon you are only buying the normal Sedan and not Sedan Saloon.