^^ He's got it right. The cowl in front of the windshield fills with leaves and dirt, which blocks the drain holes. The standing water causes rot inside, which rusts the vents, and the water then drains into the car, and that's what makes the floors rust out.
Any suspension components made of rubber need replaced. So do the springs, front and rear.
Also, it will most likely be slow compared to anything you have driven, and it handles like shit. Still, I love them and would drive the shit out of one.