But you don't get oversteer on public roads, because you're a responsible driver. You get oversteer when you're flogging it on snow at closed events. So why would you need wider summer tyres?
Because I am aware of the oversteer. If I attend a dry or wet track day this year, I would like the increased grip.
However, it would be incredibly irresponsible to even test the limits of grip on the road.
Just because I know how my car handles on-track, does not mean I drive irresponsibly on the road. Remember the bad shift in the Accent? The one that caused me to spin? I wasn't even at the limit, nor driving. irresponsibly. I just misjudged the RPM on a downshift in a car I was acclimatizing to.
Sometimes, people make mistakes. Don't let those mistakes happen at reckless speeds on a public road. Don't. That is dangerous.
The braking/stopping distance should be among your only concerns when buying tires for a car you won't be driving on the track. If you are driving the car on the track, make the car safe enough to drive on the street or pull it on a trailer. Your life isn't worth the few moments of fun.
This is the last post I will make in this thread for a while. I believe I have made my point, which is simply that you should only increase or decrease your tire size for issues regarding performance for track use. Don't drive an unsafe car, regardless iof how much fun it is. Your life isn't worth the fun in the trade.
Edit: I wouldn't trade my next breath for a more fun daily driver. Maybe a few thousand dollars for track days, but not my life. Please join me in pledging to drive according to laws, safely.