One of the reasons I got rid of my 78 Saab 99 turbo (the 1st production year of the turbo) for the MB was to accept a lifestyle change and force a driving style change. My then 5 year old just informed me last night that she will be old enough for a learner's permit next year
I've adjusted my driving style to the SD. I can't go anywhere any faster without rear ending someone making love to their cell phone, or meeting officer Buster Stones. Maintained properly, my engine needs nothing. However, I know what my seats need - some accelerant and a match. Right now, I'm looking at seats from Volvos, Saabs and BMW. Seen a few I like. Better for my back. I want it to be the right thing, then I'll modify the mounting hardware so it fits. No hack jobs here. I'm in it for the long haul.