Originally Posted by Rus/US
It's still more than just a BMW-modded 5 series! It drives differently and this is the most important factor. Have you ever driven an M car? It's hard to tell why people do M5 conversions. Most likely to pretend like this is a real M5 and not because owner likes the way it looks. I'm with M5 owners on this one unless the M5 badges removed.
Why do you care if someone got a M5 kit that looks like but is not an actual M5?
Because it detracts from the worth of your car without having paid the price you paid? Then you are exactly the customer BMW wants, politely put.
Just because there is a video of a german guy telling you how 'special' "M" is etc. etc. .. it's called marketing.