I run a ford fairmont 1997 ad a 89 190e one on fordsure and the other on the merc equivalent.Both have about 138000Ks. The Ford has cost a lot more over time but the Merc has been more frustrating with strange faults which take ages to sort.The roads in New Zealand are tarseal and have a lot of camber which makes setting up the steering and suspension tricky, right onthe limits.The 190 idles far smoother than the ford even though its a 6.Some of the trouble appears to be over complication.
Allen