550i xdrive has 8.5 33et all around
550i M sport has 9 44et rears, will retract 5mm inside compared to the 8.5 33et. No problem at all, plenty of room inside.
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Current, i3 Capparis White, Lodge interior
Ex- F10 550i Xdrive M sport, white
Ex- trade-in 2008 E90 M3
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