The updated wagons from 2000-2003 W210 body style are the ones to go for. See if you can get xenon headlamps with headlamp washers and heated seats. Roof Rack was an option as well as lumbar pneumatic seats. Comand navigation was a rare option on the wagon. I have never seen a wagon with ventilated seats but they do exist. ADS was an option but again, I have never seen one before.