Sale of live W221 S550 5.5 petrol 4matic

Selling a live W221 S550 5.5 petrol 4matic (all-wheel drive). It has good gas installed, but I and my brother the previous owner did not drive it because we don''t want to ruin the engine, and the fuel consumption difference is not significant, almost the same in terms of money, those who know, know! 2007, after pneumatic repair, engine is perfect original mileage (I don''t add a gram of oil). 308k original mileage. Transmission was replaced, also works perfectly now, two touch-ups on the body,