The new BMW 760i and 760Li are the most potent 7 Series cars ever made. They feature a twin turbo V12 worth 400kW and 750Nm in a package of absolute luxury, performance and delicacy.

BMW's new 760i/ Li range is being sold as the ultimate luxury sedan by its makers. Undoubtedly the most powerful 7 Series - and currently the second most powerful production BMW in the range - ever made, the 760i/ Li not only gives power to the driver but it presents it in a box of opulence and self-indulgence.

The 6.0-litre (5.972cc) V12 engine features TwinPower Turbo technology. The high precision technology gives it a 400kW (544hp) power rating at 5,250rpm, along with 750Nm of thrust available from a lowly 1,500rpm. This torque is then delivered all the way up to 5,000rpm. Acceleration takes a brisk 4.6 seconds from standstill to 100km/h in both the short and long-wheelbase models. Top speed is limited to 250km/h.

The EU5-compliant engine emits C02 gases averaging 299 g/km thanks to an average fuel consumption number of 12.9 litres/100km (21.9 mpg imp) in the 760i. In the 760Li the same engine does 303 g/km and averages 13.0 litres/100km (21.7 mpg imp) from the 82 litre petrol tank. Part of its success is the new 8-speed automatic gearbox that is said to run smoothly and precisely, offering both sporty and comfortable changes.

How the flagship distinguishes itself from other 7 Series models is via a few details that include an extra-wide and slightly concave chrome kidney grille frame as well as bars contoured powerfully to the front, the V12 model designation on the chrome-plated gill elements, and an additional chrome bar between the two dual tailpipes. Nineteen inch alloys are fitted as standard while the front and rear tyres measure 245/45 R19 and 275/40 R19 respectively. Both the 5.072m i and the 5.212m Li have the same standard wheel and rubber.

Comfort creatures include the unlimited use of the Internet (where available), four-zone automatic air conditioning, an electrical heater in the rear footwells, Park Distance Control, an optional panoramic glass sunroof, an 80GB sat nav system, a Professional hifi system which comprises of 16 loudspeakers, a DVD player, an AUX-in and a USB connection as well as a 12GB music file storage compartment.

Gallery: BMW 760i & 760Li in Depth