At 5.27 meters (17.29 ft) long and with a 3.12 meter (10.24 ft) wheelbase, the new Audi A8 L Security is a representative sedan that is, visually, barely distinguishable from the production version. And like its mainstream counterpart, its sporty, elegant design is now even more expressive: The hood, the Singleframe grille and the bumper have acquired sharper contours. The headlights have been made flatter and the LED rear lights have been modified too. The exhaust system is terminated by two large trapezoidal tailpipe trims on both sides of the tail end.
LED headlights are part of the standard specification in conjunction with the V8 engine; the W12 comes with Audi’s innovative Matrix LED technology. With these headlights, the high-beam comprises 25 small, individual light-emitting diodes per unit that can be switched on and off or dimmed individually as needed. The headlight system can very precisely mask other road users out of the cone of light, without significantly reducing illumination of the road.
The new Audi A8 L Security has been officially certified by the German Ballistics Testing Center in Munich; it complies with the requirements of the class VR 7 ballistic protection standard in accordance with the BRV 2009 guideline. BRV stands for “Bullet Resistant Vehicles”. Class VR 7 imposes the strictest criteria on civilian high-security sedans: The body panels and glazing of the passenger cell must withstand firing with NATO sub-caliber ammunition. In certain areas, the armor plating on the A8 L Security even complies with the criteria for the classes VR 9 and VR 10. Resistance to explosives is tested in accordance with the ERV 2010 guideline (Explosion Resistant Vehicles).
The interior of the new Audi A8 L Security is an elegantly styled relaxation zone offering a bespoke-standard build quality. There are two electrically adjustable individual seats in the rear. The front comfort seats, with an equally wide range of adjustment options, can also be supplied with massage and ventilation functions.
There is a choice of two high-end engines for the new A8 L Security – the 4.0 TFSI and the W12 FSI; both are to Euro 6 emission standard. The eight-cylinder engine with a displacement of 3,993 cc develops 320 kW (435 hp), 11 kW (15 hp) more than in its predecessor. It delivers a 600 Nm (442.54 lb-ft) of torque to the crankshaft between 1,500 and 5,000 rpm. It accelerates the new A8 L Security from 0 to 100 km/h (62.14 mph) in 7.5 seconds. Its average fuel consumption is a modest 10.9 liters of fuel per 100 kilometers (21.58 US mpg).
The high-tech character of the V8 biturbo is manifested in numerous details, such as the twin-scroll turbo chargers that provide for the early and rapid development of torque, in the innovative thermal management and in the layout of the cylinder heads. Their intake end is on the outside and the exhaust end on the inside. The turbos and their intercooler are located in the inner V. This layout results in short gas flow paths with minimal flow losses and spontaneous response.
The twelve-cylinder engine in the new Audi A8 L Security is a naturally-aspirated power unit. Developing 368 kW (500 hp) and 625 Nm of torque (460.98 lb-ft), it propels the large high-security sedan from 0 to 100 km/h (62.14 mph) in 7.1 seconds. Its top speed is governed to 210 km/h (130.49 mph). The W12 averages 13.5 liters of fuel per 100 kilometers (17.42 US mpg). Like the eight-cylinder version, that is the best performance among its direct field of competitors.
The W12 engine, with a displacement of 6,299 cc, is notable for its extremely compact layout. Its crankcase consists of four rows of three cylinders. Two rows face each other, offset by 15 degrees, and combine to form a single, wide bank. The two cylinder banks are arranged at an angle of 72 degrees. The crankshaft has a crankpin offset of 12 degrees so that the twelve cylinders ignite in the ideal interval of 60 degrees.
Photo Credit: © Audi
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