Got to say hard to make valid comparison between M5 and the Superb,both objective and subjective,such different vehicles not just in technical spec,but in personal preference . The M5 is like a theatrical event every time you drive,don't believe the media reviews that it was designed as a Autobahn cruiser for German executives,it felt like a wild animal in any driving mode except eco which never got selected. Despite mine being Debadged it still attracted to much attention from boy racers in everything from Corsas to the usual Audi and BMW brigade. Epic car but I found myself using it only occasionally,preferring to jump in my daily..a Citroen Berlingo van that I have had for my business from new and now with 150k on the clock.
Really wanted a practical estate for daily driving and particularly the longer journeys . Thought about the E class and Audi A6,spent several months comparing and having always liked the Superb as a left field choice kept coming back to the 272 sportline +,unless your a badge snob really could not see the value in the prestige German brands or anything else for that matter. The Superb just ticked all the boxes and have been really impressed so far,although only covered about 1k so far ,mixture of motorways and one trip across North Yorkshire and Lancs in the snow,great fun and the Haldex 4wd passed with flying colours,would have been still there in the M5.