I think hes trying to put things in perspective. the car cost nearly 100 grand and it a takes a good solid economy to properly maintain vehicle. Someone who makes 100K a year normally isnt driving a S550. Someone who is making 200k to 300k a year can properly maintain it. But I imagine things to go like this. He wont find anyone or get impatient and sell to the person who gives the most.

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1986 300SDL, 211K,Dealership serviced its whole life
1991 190E 2.6(120k)
1983 300D(300k)
1977 300D(211k)