My concerns:

- A W114 will rust in California. Check it carefully.

- An M110 that isn't kept up is like a sieve. It'll have external and internal oil leaks. Check for smoke out the tailpipe on cold start and accelerating after idling for a while.

- Don't expect more than 15mpg out of that car, but I think it takes regular. Did MB build pre-unleaded cars with hardened valve seats?

- External emissions stuff like charcoal canisters and EGR can be removed or disabled if you don't have state inspections for a car of this vintage. It's internal alterations like lower compression and cam profiles that are difficult to subvert.

- Those front seats look tired.

Sixto
87 300D