Insights in these cars plis

Are German GCC cars bad in terms of reliability and how expensive it is to maintain? I’m a student looking for a good first sporty car in the uae and most of my choices are German I would like some insight plis

My budget is around 70k, These are my potential choices

2014-2015 Audi S7

2016-2017 Audi A5 coupe

2014- 2017 Mercedes C class or E class coupe

2012-2013 Porsche Panamera

2014-2016 Jaguar F-type

2015-2020 v8 or v6 Mustang

2014-2016 Audi TT

2018-2019 v8 or v6 Camaro

I’m strongly considering the S7 :)