I found the same when we first bought our SLK, a sore back after an hour. Fortunately it was a weekend car. After a couple of months (thats about 6 trips, maybe 500 miles) we got the seats just right and they are comfortable for a 4 hours drive. The trick is to sit upright .. and have memory seats!
By the way, I'm 6'7", so most lumber support is in completely the wrong place anyway. (Just like adjustable steering wheels that only ever go down .... grr) |