ya was going to sc my limited one but not going to compete with the manufacturers sc motor they apparently made only in 05 to the USA . im pretty sure mercedes knows what there doing alot better then any shop i would take my liimited to. so might as well just get the srt and trade my limited in on a S550 .... but back to topic 05 white ... acessories must be included and must be under 60,0000 miles .