Quote:
Originally Posted by 760Lifan
I'm pretty sure it's just cosmetic.
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+1 it's purely cosmetic since all X7s have 2-axle air suspension.
Ordering the M50i, nets you M Performance tuned engine in addition to eight-speed automatic tweaks and now has launch-control function, and M division tuned the suspension (still 2-axle air suspension). M Sport Differential, bigger M Sport brakes and M Sport exhaust are also standard.