The two-door "90" body style sees increased availability for 2021 and now comes in base, S, X, First Edition, and new X-Dynamic trims. Speaking of X-Dynamic, this new trim level is also now available on the four-door "110" model and provides the appearance items from the top-spec X without the expensive off-road-tech features, such as the adjustable air suspension and active differential.
PROS Legendary off-road abilities, smooth on-road ride, nicely outfitted cabin.
CONS Six-cylinder engine isn't as perky as expected, best accessories and options add a lot to the bottom line, brakes are difficult to smoothly modulate.
Wi-Fi hotspot now standard,no other significant changes for 2021.
Pros Tremendously powerful six-cylinder engine Grip and handling are excellent Sleeker styling than the related X3 M
Cons Excessively stiff ride Rear headroom is a bit tight Sloping roofline compromises cargo space and visibility
Like several other BMWs, the X4 M gains Android Auto and SiriusXM satellite radio as standard features for the 2021 model year. Otherwise, the flashy fastback SUV remains unchanged.
Pros Abundance of horsepower, impressively quick acceleration, deft handling.
Cons Stiff suspension can be harsh over bumps, not as practical as X3 M, polarizing rear styling.
Pros Balanced power delivery Impressive grip and balance Fun on tap in 4WD Sport setting Transmission refinement
Cons Punishing ride Only subtly different next to regular X4 Not as pointed as a full-fledged M4
