Credit cards are just one element on your credit report, bills paid will also show up but exceptionally good credit is reserved for people who have shown the ability to pay off considerable debts on time. Get a copy of your credit report first and you'll see if it's worth looking at a loan, because you could be stuck with the option of either having to deal with unreasonable interest or having to get a cosigner.
Now a bit of my unprofessional opinion... Getting a loan for a car is a sucker's game (I've mentioned before I worked in loss mitigation for one of the largest auto finance companies). IF you have the financial discipline that you can afford to lose your job right now and maintain your current lifestyle for 6 months, you could probably do a car loan, but even still the interest will be money pissed away especially when you consider that cars depreciate in value by the minute. After the novelty wears off you will probably not enjoy having to fork over a substantial portion of your paycheque that could have gone to savings for the car payments on top of maintenance and upkeep costs on the car itself which can amount to a lot regardless of any warranty.
The bottom line is you will be losing money on a luxury where a used $5000 car could take you from A to B just as fine and often cost less in maintenance and repairs than new cars that don't come with the kinks worked out. If you make a lot and can afford the expense, have it at. But if you want to grow your capital, it's really not a wise choice.