Audi Introduces the New Longer A8

Audi has stretched the bounds of luxury sedan comfort even further in the new long wheel base version of its flagship A8 sedan, which incorporates an additional 130 mm of wheelbase and body length, the latter concentrated at the rear to provide even more exceptional passenger accommodation.
The new Audi A8 L will also be further refined by an extensively reworked version of the 12-cylinder W12 gasoline engine offering further improved power and efficiency. 
The 130 mm increase takes the length of the new A8 L to 5,267 millimeters, and the wheelbase has grown by the same amount to 3,122mm.
Lightweight aluminum employed for all elements bar the safety boosting high strength steel B pillars ensures that the extended Audi Space Frame (ASF) body, like its standard wheelbase counterpart, weighs around 40 per cent less than an all-steel equivalent.
Power will come courtesy of four engines - the 3.0-litre TDI (250 hp), the 4.2-litre TDI (350 hp), the 4.2-litre FSI (372 hp) and, exclusively for the long wheelbase model, the W12, which in its latest application has been bored out from 6.0-litres to 6.3-litres, and incorporates FSI direct petrol injection in the interest of optimum economy and emissions control
As a result, the A8 L W12 can cruise serenely to 100 km/h in just 4.9 seconds, and continue to a seemingly effortless governed top speed of 155 mph. And with the help of FSI technology, fuel economy belies these figures, with up to 23.5 mpg achievable according to the combined cycle test - a 12 per cent improvement over the outgoing model which results in CO2 output of 278g/km.
The centre differential, the main component in the quattro permanent all-wheel drive train, allots up to 60 per cent of the torque flow to the rear axle and 40 per cent to the front in regular driving conditions.