Audi would like to modernize the A8 model and release them in the initial quater of 2018 after winter test drive. The idea of modernization burst out due to the superfluous outflow of Nitrogen oxide – a toxic carcinogenic agent. About 4997 are in a queue to get renovated, off which 3600 belong to Germany. So the eminent car maker described the situation to the Germany’s Road Transport Authority (KBA) regarding the unhoped manoeuvre of emission size. All these 4997 vehicles were forged between September 2013 and August 2017. The car maker gonna replace the present working system with 4.2 litre V8 diesel engine. After overhaul, the motor must quickly reach the ideal operating state for the exhaustion of gases even after a cold start. During the test, they even consider that the updated system doesn’t cause any discomfort to its users.