Both models with feature an M-tuned version of BMW's 4.4L TwinPower Turbo V8.
BMW X7 M50i

BMW's biggest SUVs are getting a boost in power with the help of their M Performance line. The company is adding an M50i variant to both the X5 and X7, which will feature the highest spec of their 4.4L TwinPower Turbo V8. This spec will produce 523 hp and 553 lb-ft of torque allowing for the X5 to get from 0-60 in 4.1 seconds while its larger brother, the X7, will do it in 4.5 seconds. Both models are electronically limited to 130 mph when equipped with all-season tires and summer performance tires will boost that figure to 155 mph. 

Alongside the uprated engine, the SUVs will feature an eight-speed sport automatic transmission, BMW xDrive all-wheel-drive, M Sport differential, M Sport exhaust system, and an M-tuned double-wishbone front and five-link rear suspension. Other additions include front bumpers with larger openings to enhance airflow and cooling, M-specific rocker panels and rear bumpers, and BMW Individual high-gloss Shadowline trim and Cerium Grey highlights. 

The new M Performance X5 and X7 will begin production this August. 

From $82,150 (X5) / $99,600 (X7), bmwusa.com

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