A special control unit (the Bosch Motronic ME Engine Control unit) was used that could control various functions of engine operation. During the year 2004, a much better and facilitated car with the label Audi RS 6 Plus was introduced that had an increased power transmission up to 473 bhp at a speed of 6,400 rpm.
The current generation of A8s is available in a range of powerful diesel and petrol engine options including 2.8 V6, 3.2 V6, 4.2 V8, 3.0 TDI V6 and 4.2 litre TDI V8 with standard or long-wheelbase versions. The diesel versions all include semi-automatic Tiptronic gearboxes whilst Multitronic semi-automatic options are available for petrol engines. The 4.2 litre diesel V8 is the most powerful diesel engine Audi has ever produced in a car. It uses two turbochargers and two intercoolers, with each turbo functioning exclusively for one bank of four cylinders.
2012 Audi RS 3 is Coming