I was in the military with a black guy who did something similar. He showed up to the unit and damn it he wanted a red Mercedes because he made it out of basic and AIT and he was ballin now. So that's exactly what he did. Found some shady car lot right off post that prey on retards like him because they know exactly how much an E-2 makes. They nailed his dumb ass with some outlandish interest rate and the guy was so stupid he had no idea they bent him over and fucked him. Lucky for him a NCO overhead him talking about it and made him take it back to the lot and went with the E-2 to get him something he could actually afford.