It's a car that arouses a certain amount of curiosity. Why ? For starters, I have my doubts it's a 6.3 with a speedo reading 0f 220 km/hour - yet, it has the little rev counter red-lined from 6K. onward - the two instruments just don't seem to match up. Also, if it was a 6.3, should it not have the stacked headlights ? Take it a bit further. I really appreciate the most intricate and fitted that - I am talking about the headrests front and rear - very, very rare, and super, duper expensive, unless you're lucky and sort of stumble across them.
I wonder if it is a 300SEL fitted with the 280 engine, or maybe even the all alloy M189 engine, although neither of those two engines is likely to feature in this car. Also, take the (collapsed) front end - not my style, badly thought out or adjusted, and honestly, again to drive a car like that would invite disaster. I remember only too well the number of cracked 6.3 sumps I have seen and if you take a close look under the front of the car, there is not a lot of empty space between sump and terra firma. Also, take note of the gear change pattern - 1969 and prior. Just my thoughts. Regards Styria