The BMW X6 is offered in four trim levels; sDrive35i, xDrive35i, xDrive50i and X6 M. The 35i models are powered by a 3.0L 6-cylinder turbocharged engine making 300 horsepower, enough to push the X6 to 60 mph in just 6 seconds. The xDrive50i is powered by a 4.4L twin-turbocharged V8 making 445 horsepower and 480 pound-feet of torque. Equipped with the V8, the X6 is extremely quick with 60 mph coming up in just 4.6 seconds, making the performance of the X6 impressive by any standard. Power is sent to the wheels by an 8-speed sport automatic transmission, which includes both sport and manual shift modes. The sDrive35i is available in rear-wheel drive, while the xDrive35i and xDrive50i come standard with all-wheel drive. Like most BMW models, the X6 is offered in a super-performance M variant. The X6 M comes with a tuned version of the 4.4L V8, but now it makes 567 horsepower and 553 pound-feet of torque routed through the same 8-speed automatic transmission. Naturally, the X6 M is available only with all-wheel drive. The sDrive35i is extremely well equipped, as should be expected from a vehicle in this class. Standard features include 19-inch alloy wheels, LED fog lights, adaptive headlights, power-folding heated side mirrors, 14-way power front seats, Dakota leather upholstery, wood trim interior, a powered moonroof, a power rear liftgate, automatic climate control, rear parking sensors, a navigation system operated via BMW's iDrive system, a 10.2-inch infotainment screen and 9-speaker sounds system. The X6 xDrive35i includes all the same options but adds all-wheel drive and hill descent control. The xDrive50i model steps up to the V8 turbocharged engine and all-wheel drive. Additionally, standard features include upgraded 20-way power front seats, Harman/Kardon surround sound audio system, rear air conditioning and a hands-free power liftgate. The X6 M is equipped similarly to the XDrive50i, but also includes a sport-tuned suspension with driver-adjustable ride control and unique 21-inch double-spoke wheels. BMW offers two different personalization packages for the X6, dubbed M-sport and xLine. The M-sport package emphasizes the on-road sportiness of the X6, and features unique 19-inch, 20-inch or 21-inch wheels, unique exterior trim, aerodynamic enhancements, an M-sport steering wheel and sportier seats. The xLine package features a unique set of 19-inch wheels, as well as a nice set of aluminum rocker panels and bumper trim. Other option packages include the Premium Tier and Executive Tier. The Premium Tier features surround view cameras, wireless charging and hotspot, a head-up display and parking assistant. The Executive Tier includes the Premium Tier features, plus automatic high beams, soft-close automatic doors, and adaptive LED headlights. Other options are plentiful as well including dynamic-adjustable suspension, several different styles of 20-inch wheels, ventilated front seats, a rear seat entertainment system, leather dashboard, an automatic parallel parking system and a Harman/Kardon or Bang and Olufsen sound system. Safety features of the X6 include a suite of airbags, adaptive brake lights, active blind-spot detection, front collision warning, city collision mitigation and lane departure warning.