It's like a driving a go kart compared to piloting an ocean liner.
I love them both the same though. The 300SD is WAY more comfortable on the freeway (at lower speeds
). It's nice not having the aluminum tub resonating exhaust/road noise from a high-strung gasoline engine in my ears the whole time.
I would sure love to keep the Benz as the freeway cruise by lowering it's RPMs on the freeway though. Then it would be perfect.