0-60 in 5.4 seconds. The V12 is a decent motor but nothing like a V8 biturbo in the S550 2013 up. They will haul ass in sport mode, 0-60 in 4.5 seconds. Impressive for a big car. Mercedes really nailed it with their seven speed auto, the gear ratio split in the trans is perfect. The best S550 is 2014 and up,great cars. I wouldn't own one out of warranty though. The vast majority are leased, all you need is a "business", lease the car, full write off and all maintenance is included. My experience with Mercedes both in service and the quality of the car has been fantastic. I never ever let anybody but Mercedes touch mine when I owned one. Technology is amazing, air suspension is sweet.