Quote:
Originally Posted by KoenG
Watch out, the 650i Xdrive has more output and consumes less fuell, without cilinder shut down! S6=225g COČ and 650ix=215g COČ so the consumption is less with only Valvetronic. The 550i will get this update also this year so the lagging position is only temporal.
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Hmmm, the US spec 2013 650xi coupe get the same MPG as the 550i, 16/24 MPG.