The plug-in hybrid model is called A6 TFSIe and has a boot capacity of 360 liters. The wheelbase is the distance between the centre of the front. Sleeping In The Car Audi A6 Avant Allroad Audi A6 C6 Avant Boot Dimensions With a capacity of 565 litres the a6 avant has a slightly smaller boot than the 5 series touring 570 litres and v90 575 litres and falls some way short of the e class estate 640 litres. Audi a6 boot size . Not only does this generation of A6 Saloon have a larger overall boot capacity than its predecessor - and exactly the same size as its main rival the BMW 5 Series - but its also got a wider opening at 1194mm. Specs of length width and height of each vehicle Audi are expressed in millimeters and the boot space in dm 3 equivalent to liters. The A6 Allroad quattro 4G C7 facelift 2016-2018 has 35 liters more boot space than previous generation of 2014-2016. Boot Space litres 530. Audi A6 and A6 Avant boot space Like the cabin the A6s boot is massive. The Aud...