The full-size 7-Series sedan is the largest and most luxurious model in BMW's lineup. Turbocharged engines with six, eight or twelve cylinders are available, as is all-wheel-drive and an extended-wheelbase variant. While the previous-generation 7-Series ushered in the controversial Bangle era of BMW styling, the latest model takes a much more conservative (and arguably elegant) approach while continuing to offer responsive driving dynamics along with an updated version of the automaker's iDrive infotainment system.

The most substantial changes to the 7-Series, however, lie beneath the sheet metal.

Powertrain Updates : 
The 7-Series can be had with three separate powertrains, each designated by a unique model name. All but the top-spec 760Li have received significant upgrades for the latest model year.

The “entry-level” 740i trades its twin-turbo 3.0-liter inline-six for BMW's newer, single-turbo of the same cylinder count and displacement. Output is unchanged at 315 horsepower and 330 lb-ft, but the motor is more fuel efficient that its predecessor. BMW's xDrive all-wheel-drive system is newly available on the six-cylinder 7-Series, although only in long-wheelbase 740Li form.

The mid-grade 750i continues to employ a twin-turbo 4.4-liter V8, but the mill gets a power bump of 45 horsepower and 30 lb-ft of torque for a total of 445 ponies and 480 lb-ft.

Occupant Safety : 
Every 7-Series model is equipped with dual front, side and side curtain airbags along with traction and stability control systems and a crash sensor that disconnects the alternator, fuel pump and starter from battery, automatically unlocks doors and turns on hazard and interior lights in the event of a collision.

Even more safety features can be had with the driver assistance package, which brings an active blind spot warning system and a lane departure warning system with Collision Mitigation (which applies the brakes when an impending collision is detected). The package also includes side and top view camera, which provide extra side-view visibility, and Speed Limit Info, which displays the local speed limit at the top of the instrument panel.

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