[ted]

Sometimes production car specs are just too homogenized for the masses that drive in traffic or lack sensitivity in the left foot to properly engage the clutch.
So manufactures compromise make the flywheel heavy so almost anyone can get the car rolling with out stalling it.
I expect most car enthusiasts are more capable/skilled/experienced than what the car engineers determined to be the best combination for anyone to be able to drive.
When you take that to the track it just makes for a lazy car.
Which is fine if you don't mind waiting for a slow responding car.
A heavy flywheel on the track makes a car feel slow and heavy.

I also enjoy some videos of production cars on track with a stock steering box.
Some of the saves are impressive when you need to turn the steering wheel so much to catch the car.
A quick ratio steering box on a dedicated race car may only move a half turn to full lock.

The question is what track mods are not acceptable or not tolerable if your track car is a dual purpose street track car.
I never drive my track car in traffic so never have to suffer the daily grind of stop and go traffic in my track car.
For sure I was never on track thinking how can I reduce engine responsiveness, how can I increase the steering box ratio, and I never liked the factory front brake bias either.

So much wrong with production cars when you drive them on the track.