"You hear that Potomac went out of business? Bad news for them, good news for car traders. They only just launched the Indian - that car's going to be a classic, trust me. If you could lay your hands on one, I'd make it well worth your while."
From the mission start, head up the block where you'll find the car parked in a back alley behind a chain link gate. Hop in and drive it to the garage in South Millville where you'll get a decent payment for your efforts. There is plenty of time on this one so there's no hurry. The car is pretty slow and has virtually no acceleration so if you're going to try and pass any traffic along the way make sure you have a long stretch of open road ahead before you do.