Bigstar,
One of the nice improvments of the Mechatronik car is that the A/C is integrated into the dash and there is no Frigiking unit to hang down from the dash. Also, the 5 speed transmission is mated to the V6 and is quite nice. Heated seats, automatic windows, etc. don't hurt either and the audio system is strong. I have driven 2 of the Mechtronik cars and they have figured out how to update the classic to a fully functional modern car while retaining the overall look and feel of the original (until you open the hood).
Best,
Tom
1971 280sl Tunis Beige Metallic (restored & enhanced)
1971 280sl Tobacco Brown (low mileage stock)
1970 280sl Medium Metallic Blue Beige Interior (project car)