After several thousand miles in a 2015 S550 it would be hard to imagine a more well rounded or comfortable luxury sedan. Performance with the 449HP V8 is more than adequate for any circumstance, and handling is better than one might expect given the size and weight of the car, especially when in the sport mode. The ride is remarkable over any surface and the noise level is lower than any luxury car I've owned, including a Bentley Flying Spur. Mileage is runnning about 20 MPG in combination town and highway driving, getting 25+ on the highway. The technology features abound but are subtle enough not to intrude excessively, and aren't difficult to master. Not one problem so far. A home run Update: After another year and a half I am still in love with my S550. I've had absolutely no problems and I still love getting into it each day.
I have had the car for 3 months, 2500 miles and have absolutely no problems or issues. I went from a 2008 S550 to this 2015 S550 and the new one is a league of its own. Two days after purchase I went on a 300 mile trip on I10 here in Arizona. This gave me time to try and use all the options and gave me a very good comfort level with them. Some of my answers are based on my 2008 but again this car seems bullet proof. 7-12-16 Updating my review: After over a year I am still very happy with this car and love driving it. I wish the buttons to activate lane keeping, night vision etc were in another spot (below the radio screen?). Had regular service a few months ago and still no problems to report. This is a great car! 1-13-17 and 15,000 miles. Car is going strong with no problems other than having to replace the batteries in the key fob (done at no charge by the dealer).
We've owned 5 MB's and to be honest I can identify with the people who have had problems. I've had issues with MB in the past but fortunately for us this time seems to be a charm. We did however have to have the battery replaced. It seems if one has the push button start/stop feature, one has to be sure the car is off and not in standby mode or it will deplete the battery. Now to the good stuff. This car rocks!! This is the best luxury car on the road bar none. I'd put it up against anything out there where luxury is concerned, including Rolls or Bentley. When compared to the uber luxury cars the new S-Class is a champ!
It eats tires and brakes, and will cost you more for gas as it is lucky to get 16mpg if you do not drive on freeway every day. Definitely would be the car if you did a lot of open road driving at higher speeds. Lots of power for passing even at high speeds. Quiet and great ride.
Prior vehicle was a 2014 E250. It had 40K miles with no issues. Reason for the S class was I wanted it and didn't want to wait for the diesel. The S is the finest vehicle I have driven. The ride stands out, it is smooth and does not float, handling is outstanding for a large vehicle. The seats are second to none, multiple adjustments and massage minimize driver fatigue. Interior design works very well ergonomically while looking great. With voice command and nearly every function within easy reach on the COMAND system driver can focus on driving while managing other features. The S550 provides more than enough power; haven't detected the turbo lag I experienced in the E Class
What an engine. There is a soft spot around 2,300 rpm off the line, but then it rockets forward with unending thrust all the way down the quarter-mile. Upshifts are quick but oh-so-supple. Engine sounds forceful without being the least bit obnoxious. First run, with tranny in ?E? and ESC fully on, tied for the quickest. The S550 saw zero improvement even with power-braking (overlapping throttle and brake on the drag line, to increase revs and spool turbos), which is odd for a car with turbochargers. Trap speeds remained high, meaning there wasn't any sign of heat soak to the engine which would cause power to drop off after continued hard running. Manual shifting is via steering-wheel paddle shifters. It blips the throttle on manual downshifts (quite nicely, in fact), but does not hold gears to the rev limiter and upshifts for itself at 5,900 rpm. In fact, if you?re not turning or accelerating hard, it will eventually transfer itself back out of Manual mode and into Drive.
Ultra-firm pedal feel, intuitive amount of travel. And this car just plain stops, with no side-to-side fuss and little nosedive. No pedal fade, near-zero brake odor. The first stop was 116 feet. The third stop was longest at 119 feet and the sixth and final stop was 117 feet.
Slalom: Pretty quick steering from this big coupe and good grip from the tires. There's no getting around that this is a big, heavy beast with a pretty long wheelbase, but near-67 mph isn't a bad slalom time for a car like this. It always felt solid and planted and pretty maneuverable considering its weight. One annoying aspect was that even in the transmission's "S" mode and with the paddle shifters invoked to Manual mode, the S-Class coupe would eventually revert back to Drive mode, meaning it would upshift right before we entered the slalom. Kind of annoying. Skid pad: Excellent front tire grip, despite plenty of body roll/lean as it went around the steady-state turn of the skid pad. The car was not that receptive to drop-throttle antics to alter its attitude to curtail out some understeer, and the all-wheel drive didn't allow any tail-out action whatsoever.