I realize that motorcycles are great fun, but here in Acapulco they're more of an essential. For under a grand, you can buy a basic motorcycle that'll haul you up and down the mountain no problem, and at a tiny fraction the cost and maintenance effort of a car. The mountain destroyed the clutch on my car in a couple months, though admittedly that clutch was already well along its path to retirement when I got here.
Mountain towns are rough on cars. Motorcycles are light, so they're much better equipped to tackle the mountain, especially for moving any loads small enough for a rugged human to carry. A car is major overkill at that point.