2017 Civic Si - 3:14.6And weren't those like 30k+ lol
2015 JCW Mini Cooper - 3:15.4
They said the base price for the model they had with the performance options was 33k. May as well spring the extra few bucks for a CTR at that point, it's obvious the brembo brakes and larger engine didn't do it any favors around the track.
After rereading the OPs post a few times, it sounds more and more like they are disappointed with the straight line acceleration. Considering there are no comments about any other performance aspect of the car.
You must have read the power figures. You must have test driven the Si before you bought it. I'm sure you didn't get the same shitty experience I did test driving a used model on the lot that secretly had a tune, misrepresenting the car's factory power.
Buy a ktuner.