Hmm...I can tell how much room I got and judge just by looking down the side of my car thru mirrors, never bumped in to car! After driving a car for a while I get use to the size and the length, I use to drive 25 tonne lorrys when I was a teenager and never had problems with parking it after I got use to the size of it, i didn't like using the reverse camera neither, no need! Especailly if you can see the parked vehicle behind out of at least one mirror it shouldn't be a problem parking it and judging distance.. I guess a reverse camera is only worth it for the less confident driver or for commercial vehicles with no windows on the back... But an x5 you can see the whole way round just like any other car..

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x5 is gone