I had tested my 2017 GSF and a rental 2018 M4 Competition. They both ran about 5s flat.
If you don't believe that, you can test on your own. (I really don't mind...
)However, after 100km/h I believe my GSF and M4 are faster. (But, I never tested them because the tests were illegal on public roads)
PS: I also tested a rental 2019 Q60(300hp). The result was 5.28s.

(I think I over tighten the plug in the past)
(Thanks GOD!!!)






















































































