No way. Btw $500 is known as transport allowance, not car allowance. Market practice is that only amounts that cover full cost of car ownership is called car allowance, small amounts that only cover operating exp fuel, carp park & erp is known as transport allowance.

If you already have a car, $500 is slightly short to cover cost of maintainance such as fuel is ~$350, ERP ~$100, Carpark ~$100. I'm estimating base on fact you need to do site visits, move around for normal ops work, to & fro from home to office. If it's sales the amounts will be much higer since you need to travel frequently.

If you do not have a car, you are totally screwed. The loan servicing alone will arleady cost at least $800 if you are buying a 5+ years cheap Japan sedan car. Leasing a car even worse, about 1k+.

In summary, unless SP give you the choice of moving around in public transport, the $500 is paltry, be prepared for big pay cut if you need to buy a car.

BTW what is ur job grade? $500 seems really low unless you are very junior.