The Estate version of the Audi A6 model has a 3993 cc (243.6 ci) 32 valve V8 Turbo Petrol engine. It has a 8 speed/ Auto gearbox with the power being delivered through it's AWD system.
The Audi A6 RS6 Avant Performance 4.0 Turbo - [2015] has a top speed of 190 mph (305.7 kph) and can accelerate from 0 to 60mph (0-96.6 kph) in 3.60 seconds or 0-100kph in 3.7 and can achieve an estimated 1/4 mile drag time in 13.34 seconds with a trap speed of 114.9 mph.
BMW 5 Series M5 F10
Engine: Naturally Aspirated Petrol | 4395cc 32v V8
Top Speed: 155 mph
0-60mph: 4.40 seconds
Mercedes SLC 350 C107
Engine: Naturally Aspirated Petrol | 3499cc 16v V8
Top Speed: 204.3 kph
0-100kph: 9.3 seconds