On the subject of door beams but a little off topic, I used to have a '74 Mazda RX-4 coupe back in the late 70's early 80's and it had some huge steel tubes running through the insides of the doors. They didn't appear to be that strong because they got bent from merely opening the door a little too hard into a light pole. I know this won't compare to a M-B but I thought about sharing it with everyone.

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DJ


84 300D Turbodiesel 190K with 4 speed manual sold in 03/2012