When I picked up the car (rear oo----oo Aero Racing)I asked the garage to replace the rear exhaust with the side ones.
The made me think about it (losing anyhow some money) with the following points:
1. too noisy for a daily driving car
2. in the city traffic you'd smell the exhaust smell (not sure about the English wording)
1) You are driving a purple Supersport. And you are worried about the noise! It is loud enough!!

2) If you are driving in city traffic you'll get that from the car in front or next to you. (Not the smell but the fumes themselves)
Admittedly it is all personal choice - but for me, side exhausts would be a must have
(Still no update on "mine" yet)