you really should check out the color plus web site. I did my drivers seat and the center armrest on my 380SE and they turned out great. You use a brush to apply the color...no brush marks and the finish is like new. I had worn marks on the drivers side bolster and small rubbed or worn marks on the center arm rest. The color I used was their standard MB grey which matched virtually perfect. It is slightly darker but considering my car is 20 years old and I did not send them a small swatch to match, the color was fine. Besides how are you going to get a small piece to send them to match unless it is from under the seat which will be darker anyhow since it has not been exposed for 20 years.
www.colorplus.com