Yeah. That's a w108. It can't be any later than a 1973, and to me it looks like probably a 72-73 which are essentially the same.
A lot of it looks identical to mine. Here are a few things I noticed:
- side markers are very very faded. That means lots of sun exposure, but the dash doesn't look all cracked up which Is very good.
The seats don't seem to match the door panels. I think the seats might be dark brown like my 280se 4.5. Hmm... I wonder if I'd be interested in working a deal with you.
- The chrome arches over the wheel wells are something that shouldn't be there IMO. It wetter climates things like that are known to cause rust, at least on other models like the 107s.
- Having a sunroof is a really plus IMO.
- the radio appears to be not the original Becker, which I think something of this vintage really deserves.
- the 4.5 rear differential is a desirable piece as other drivetrain owners like the idea of reducing highway RPMs. Kent Bergsma has a few videos on this.
- column shifter isn't as desirable as the floor shifter IMO, but that's ok if you don't plan to manually shift through the gears.
I am a huge fan of the w108, and I consider it an upgrade over a w114 sedan even though the w114 sedan is a more modern car with a much more modern suspension. I was happy to switch to a w108 even over my w114 coupes. I think it's a more regal looking design whereas I think the w114/115 is more of a "plebeian" model. If your w114 was well tuned, I suspect you should have been able to get 16 mpg in your w114 on occasions. After frustration with the dual zenith carbs, I was glad to switch back to an injected model. However, I don't think you should ever expect much more than 12-13 mph from a w108 4.5. Maybe a very very rare 15 mpg going downhill, but even in my 1973 450sl I couldn't get over 16mpg on the highway at 55 with no brakes, and that has a lower diff ratio too. D-jetronics are very neat IMO, but it's a good idea to keep a set of spares on hand of the parts that are plain ridiculous to buy new. I'm still working on my collection.