The car is well balanced, great response. The upgrade in the leather is way overpriced. If you wanted black leather interior it was not avalible, charcoal not black, unless you bought the upgraded leather interior. I have 12000 miles on the car with no problems. The one negative is that it is very easy to speed, the car wants to get up and go! If you want a SL and have an extra $30,000 to spend, go for the SL55.
Balance, looks, paint, handeling, all around great car.
More user frendly GPS/Computer. More choices of interior & exterior colors.