A few months ago, one of my customers insisted on ordering a set of snow tires to use for rain tires on a short race track. "You don't want to do that," I answered. He was insistent though. He reasoned that they would have a very soft compound, and a tread that evacuated water very well. These things were true, but they would also have very soft sidewalls, and are not built for sporty handling or high speeds. After giving him every warning I could think of about handling, treadwear, and safety I sold them as "at your own risk."
He just called me today for some other tires, and reported that he'd used the snows on a wet track and that they worked quite well. He did admit that it was a shorter, tighter track, and that on a fast track like Road America it would have been a different story.
After five years of doing this, not much surprises me about customers and their tires anymore, but I was definitely surprised today.
*Disclaimer: Tire Rack does not endorse, approve, suggest, recommend, or otherwise encourage the use of snow tires for racing purposes. This blog is for entertainment purposes only. Wear your seatbelt, obey the speed limit, and eat your vegetables.