W221 prefacelift you're absolutely right! As for the engine that's easy: I heard it :) The big V8 has quite a different sound from the others. Come to think of it it might actually be the S550 as there probably wasn't a 500 in the prefacelift models.
NOT! 550 designation is US-Spec, america only. DOes not matter if its prefl or not, it was just abbreviation used for all W221 with 5,4 v8 and 4,6 in FL guise, in the USA.
W221 prefacelift you're absolutely right! As for the engine that's easy: I heard it :) The big V8 has quite a different sound from the others. Come to think of it it might actually be the S550 as there probably wasn't a 500 in the prefacelift models.
NOT! 550 designation is US-Spec, america only. DOes not matter if its prefl or not, it was just abbreviation used for all W221 with 5,4 v8 and 4,6 in FL guise, in the USA.