To winter drive or store?

2018 s4 prestige stage 3+ 56k miles. The car was just ceramic coated professional for winter, and I want to drive it.. I just don’t want to rust it out or damage the underside. I do have a 2011 A4 as a beater… but I got the Quattro for winter driving but I’m torn here. Realistically it isn’t going to hold value no matter how little I drive it or keep it away from snow… Let me hear the opinions on it and ways to preserve the car in bad weather! Do you winter drive your built Audi?