Quote:
Originally Posted by elp_jc
Quick question: Why some cars have the middle leather 'fold' on the thigh extension and most not? Couldn't find a pattern. Mine doesn't, and have the extended leather. I personally like it better smooth, but just curious. Thx.
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"Euro" seat bottoms have the center detail (and bolsters are slightly higher). US cars get the plain seat bottoms from the regular 3-series. May have something to do with air bag sensors.
Old but extensive thread here:
http://www.m3post.com/forums/showthr...ht=seat+bottom