Not too long ago, the Infiniti M was the lesser sibling to the flagship Q. It was the middle child. During the 2006 model year, when the Q was less than a year from being dropped from the lineup, Infiniti gave the M a strong shove in the back in the form of a 4.5-liter V8 and quietly told it to climb up on the soon-to-be-vacant throne. With the Q gone and unlikely to return anytime soon, the
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