The first ever 2014 Audi A8 L TDI® quattro® all-wheel drive with the new 240 horsepower 3.0 liter TDI clean diesel engine starts at $83,395 (including $895 destination charge) with an EPA estimated fuel efficiency of 24 city/ 36 highway/ 28 combined mpg. The 2014 Audi A8 L TDI with 0-60 MPH time of 6.4 seconds will go on sale in early this Spring. The available Premium Package now consists of Audi side assist and pre sense rear, 22-way multi-contour comfort seats, front seat ventilation with massage and full LED headlights. The A8 L TDI, available in the long-wheelbase version only, joins the other A8 models: A8 3.0T, A8 4.0T, S8 4.0T and A8 W12.
In comparison, the 2013 A8 L 3.0 TFSI® twin-turbo V8 gas engine model sells for $79,395, $4,000 less than the new TDI but it only gets 18/28 mpg vs. the 2014 A8 L TDI at 24/36 mpg. So let's say you drive 12,000 highway miles per year. With the gas engine at 28mpg using premium grade at $4.06 per gallon its costs $1,740 per year. With the TDI at 36mpg using diesel at $4.26 per gallon it costs $1,420 per year, a fuel cost saving of $320 per year. The TDI costs $4,000 more so it will take 12.5 years ($4,000/$320) to breakeven. Other TDI considerations like less maintenance cost and cleaner emissions have not been factored in.