I ran the 20" wheels from the 4.8is on my E53 for 3 Reno/Tahoe winters with no problems and I'm planning on using the same wheel/tire size on the E70.

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2017 Nissan GTR Red/black - Tune/midpipe
2013 BMW X5 50i M-sport Alpine white/black - Dinan stage 1
2016 Jaguar F-Type R Gray/red