Some four years after its market debut, BMW is updating its flagship 7-Series limousine with a mid-life facelift for the 2013 model year.

Four years after its debut, BMW is updating its 7 series limousine with a mid life facelift for the 2013 model year. On the outside, the change concerns the new LED headlamps with corona rings, accompanied by a modified grille with nine slats instead of the previous 12, and a revised front bumper, and new indicators under the mirrors and a thin chrome strip connecting the two slim reflectors in the rear apron.

On the inside, the 2013 model brings newly designed leather front seats and a 1,200 watt Bang & Olufsen High End Surround Sound System and an option Rear Seat Entertainment package with a 9.2 inch monitor.

BMW's new 3.0-liter tri-turbocharged inline-six diesel, first seen in the M550d xDrive will be motivating the 2013 model year. The diesel unit is rated 375hp, and 740Nm allowing for a 0-100km/h in 4.9 seconds and a limited top speed of 250km/h,

BMW quotes a combined fuel consumption of 6.4lt/100km (36.8mpg US or 44.1 mpg UK) in the EU test cycle, with CO2 emissions of 169 g/km.

Gasoline engine choices include the 760i with the same 537hp (544PS) 6.0-liter bi-turbo V12 as before, the 750i with a revised 4.4-liter turbo V8 producing 444hp (450PS / +10%) and 650Nm (479 lb-ft / +8.5%), and the 740i that gets the new N55 3.0-liter twin-turbo churning out 315hp (320PS) and 450Nm (332 lb-ft) of torque.