I dunno about that. Depends on the 140. Most of the 140's that I have seen are dogs with cracked leather interiors and malfunctioning systems. I think the well maintained 140's will still be worth more than a 126. Look at the 6.3's and 6.9's for an example. There are dirt cheap 6.3's and 6.9's because they are rough. The ones in really good shape sell quickly for a LOT of money.

The 140 is not yet old enough to be a "classic" car since production ended in 1999. When the flock starts to thin with some of the bad cars being junked there will be less of them around. They also are rather etched in the history books because of the Princess Di accident. I have seen 140's range in price from $7000 for an older crappy one to in the low 30's for low production S600's. Keep in mind there is a cult following for the 140 because of the build quality in comparison to the other cars.

The 126's have the same resale issues as well. Many of the early 380SEL's from the early production are already beginning to die off. Not to mention the $1000 something pricetag the early 380SEL's are selling for. Those 1992 $7000 300SE's are just like the 80's 380SEL's.