Nelson

The addition of all-wheel drive to the BMW M5 is big news this year. Or is it? The hot-vee twin-turbo S63 V-8 that powers the M5 has motivated 550i xDrive models since 2011, albeit in a civilian-grade N63 state of tune. Now that the motorsports gang has breathed its M magic onto the M550i xDrive, […]
The post 2018 BMW M5 vs. M550i xDrive: M’ed 5s appeared first on Motor Trend.


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