Wifes car is doing just over 3k at 80mph just curious as to what other peoples c320 PETROL did i mention PETROL versions are doing.
I thought it seemed a bit busy sounding its defo in 5th.
My only petrol vehicle does 5k rpm at 80mph. It's only got 2 cylinders and will double that speed just a few seconds later....where legal
The big silver car fuelled from satan's own black pump is just beyond tickover at 80mph.....1900rpm with the big wheels on.
Our C320 also does 3k RPM at an indicated 80. I'm sure my Dads petrol powered S320 revs lower than that at the same indicated speed. Like you I also thought it looked odd.