The ultimate autobahn cruiser of its time and then some. Nothing could touch the Mercedes 6.9 in terms of might and comfort. Following in the tradition of the Mercedes 6.3, this was also the fastest four door sedan in the world when new. 100 MPH on the highway could be enjoyed as long as the fuel in the tank held out. The 6.9 liter (417 cu. in.) engine made bursts into the 140s attainable if needed.
The car’s impressive hydro-pneumatic suspension, operating at over 2000 psi provided silky smooth road manners and kept the car on an even plain on hard launches and braking. The system is however expensive to service if not maintained properly. Unmaintained 6.9s can be spotted by their lowrider like appearance as the suspension settles. Vacuum operated cruise, door locks, and trunk were nice features as well. Also of note is the car’s impressive 12 (!) quart dry sump lubrication system. This allowed for better oiling during a spirited workout and made it possible to cram the monster engine under the hood. The oil reservoir is mounted near the fender instead of in a pan underneath. Taking this car in to your local quick oil change place was not considered a viable option as you would either end up with a drained transmission pan or an engine short half a case of oil.
Genuine AMG vehicles of this era are hard to document. The factory didn’t keep great records so knowing a cars history is important.
is an interesting case since it has been restored and has a new engine rebuild. The seller seems to know his stuff in terms of the 6.9, so likely there is no deal to be found here, just a chance to take ownership of mighty Merc.…