The model 107 has the classic look of the 450SL from the early seventies, and is a great, hand-built automobile. If you get a 560SL (1986-89) you will have the dual benefits of the classic styling and more modern, refined and powerful features. The 560SL is pretty bullet-proof and reliable. They were designed "to last a lifetime" so they are repairable and maintainable. The only critical issue is maintenance of the timing chain guides which should be replaced, as they are nylon and get brittle. If they break, it could be catastrophic for the engine, as a slipped chain could result in valves hitting pistons. The good news is that it is not a real tough maintenance item and much has been said on this forum about it.

The 560SL has the added benefits (over earlier 450Sl and 380SL) of ABS brakes, driver airbag, more reliable A/C, and better seats. The engine is also big and powerful. Good luck.