I hope someone finds this of interest. If boring, please ignore. So, after precisely 2 weeks of ownership from new and 500 miles, the following are my thoughts about my S5 Avant and in particular to how it compares to my previous car , a Q8. Firstly and most obviously is the tech in this car compared to the Q8 which was 7 years into it's development and used a vastly inferior architecture to the latest Audi MMI. I am 78 years of age and to say I am astounded about how good this is and what it can do, is an understatement. Particuarly the " Hey Audi " feature which is outstanding. I never used the voice recognition in the Q8 as it was so poor but with this, it understands everything you say and you can control almost everything with it. I am smitten !!! Even though I havent had a blast yet, the S5 is clearly a much more powerful and faster car. The Q8 was not a slow car with 335 bhp and a 0 to 60 time of about 6 seconds but it had alot of weight to haul around. Nect build quality ? I detest creaks and rattles in cars. One of the reasons I was a proud owner of 2 VW Phaetons as the build quality on those cars was unsurpassed in my opinion . I was a little concerned reading some reviews that seem to say that the build quality on newer model Audis had taken a dive. At the moment, thats not true and the car seems solid and well screwed together Next, how comfortable would the S5 be compared to the Q8. This was my worse fear realising I was coming out of a car with air suspension and designed and built with comfort in mind and into one where handling and road holding was paramount. On that, the jury is still out and I know I was taking a bit of a punt on this. On roads I know and in comfort mode the suspension on the S5 certainly crashes and bangs a bit more. But nothing that really bothers me and I get the feeling that it is more to do with the 35 section tyres compared to the 40's on the Q8 rather than the adaptive dampers versus the air suspension. And finally....perception ? Isnt it strange that the Q8 is still considerd the flagship model of the Audi SUV range but in 6 years of owning two they rarely received a glance or a comment although to my mind, they were pretty handsome cars. Whereas in 14 days of ownership I have had numerous people come up when I have parked up, to ask and admire the car. I think the age range of the admirers is substantially lower that anyone who came up to look at the Q8 which tells you something maybe. I hope this is of interest. If not just delete. Frank