Today is freezing and I hate cold feet. Before taking my yellow Saucony sneakers for a walk I thus warm up my socks with the exhaust gases from my Audi A3 Cabrio. Fortunately, the Audi has two exhaust pipes---one per sock---so all I have to do is rev the engine barefoot. When putting the socks back on, I am very pleased with their temperature. 5/5 Stars for the Audi!