Price is certainly a consideration. Try to find 1984 or 1985 (maybe '83?), it will surely have the double row chain that came from factory. The up's include a bit better gas mileage compared to the 560SL. Down's as far as comparisons to the 560SL are less power, no airbag or ABS brakes, and front seat backs without bolsters. Regardless of model, try to find one that has been well-maintained with service records. Knowing the history tells much about the potential for future repairs, some that are expensive. Also avoid cars that were run in winter in snow areas, as salt will rust and rot underside. With some restoration including subframe bushings, shocks, brakes, fluid changes and tune-ups the right lower-priced SL could be a great car. Be sure to drive the car before you buy...it will tell you much. Good Luck.