Are the M4 doors made of steel or aluminum? Would a magnetic car door protector work?

Srac · 07-31-2018, 02:50 PM

I was thinking of buying this https://www.amazon.co.uk/dp/B00F2ECLV0 but then I thought maybe the doors are aluminum and not steel to save on weight.

mkoesel · 07-31-2018, 02:55 PM

http://autoweek.com/article/car-news...rets-laid-bare

"Meanwhile, BMW has revealed both the new M3 sedan and M4 coupe will a carbon-fiber-reinforced roof panel. The hood and front fenders are aluminum pressings with the doors and rear fenders made of steel."

07-31-2018, 02:50 PM	#1
Srac Second Lieutenant 82 Rep 213 Posts Drives: 2019MY F82 M4 CP SO Join Date: Apr 2015 Location: Portugal iTrader: (0)	Are the M4 doors made of steel or aluminum? Would a magnetic car door protector work? I was thinking of buying this https://www.amazon.co.uk/dp/B00F2ECLV0 but then I thought maybe the doors are aluminum and not steel to save on weight.
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07-31-2018, 02:55 PM	#2
mkoesel Moderator 7515 Rep 19,368 Posts Drives: No BMW for now Join Date: Jun 2006 Location: Canton, MI iTrader: (1)	http://autoweek.com/article/car-news...rets-laid-bare "Meanwhile, BMW has revealed both the new M3 sedan and M4 coupe will a carbon-fiber-reinforced roof panel. The hood and front fenders are aluminum pressings with the doors and rear fenders made of steel."
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