Why spec 19s if you are happy to run around on small wheels?
You also act like there is no downside - a winter tyre fitted car will likely take longer to brake in typical UK winter conditions than a UHP tyre fitted car. So you reduce your performance most of the time to see a marginal improvement some of the time....
You also act like there is no downside - a winter tyre fitted car will likely take longer to brake in typical UK winter conditions than a UHP tyre fitted car. So you reduce your performance most of the time to see a marginal improvement some of the time....