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From: In a parallel universe. Currently own 2014 Stingray Coupe.
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I'll take a different approach than the previous poster. Yes, a search should turn up some thread links that would be useful, but here is what I have seen posted by those that store their cars for the winter.
Owners have used mothballs, Bounce dryer sheets, and Irish Spring soap to help keep critters from making a mess of their car. Some have set traps around the car or used one of those sonic devices to keep pests away. Others stuff steel wool in the exhaust tips to prevent entry. I have never seen a mouse in my garage, but I do add a couple of Bounce dryer sheets in the passenger compartment and a couple more in the engine bay as a preventative measure. I chose not to use mothballs mainly due to the awful smell they emit. If I were going to use them, I would not put them inside the car.
An obvious way to prevent mice is to ensure the storage space is sealed well. You could also invest in one of those car capsules where the car is completely enclosed - it not only secures the area around the car but keeps dust and bugs off the car also.
Or, just drive it in the winter weather permitting (no snow/ice/salt on roads). I have done this for the 4+ years I have owned the car living in a snow state and have had zero battery or mice problem. But that is me. I cannot give up driving my toy for 4-5 months because it is winter.
Posted this in another storage question last month; happy to share again as I just pulled the jet skies off there summer pads and getting ready for winter storage. The Corvettes are next!
Look around the storage location and make sure to remove any food source that might draw mice. Case in point - I'm fortunate to have a 30x30 garage at our lake house where I rotate the cars throughout the year and generally park for the hard winter months (Dec - March). A couple of years ago we started seeing deer tracks so I put out a couple of game cameras and a small deer corn feeder. I loaded the feeder and stored the rest in the garage. There is a lot stored in the garage in the winter...boat, jet skis, Corvettes, and a fair amount of "projects" ...always something at a lake house! At any rate, I forgot about the excess deer corn and two years later discovered some mice had moved in. It was sort of cute at first - finding their little stashes of corn in nooks and cubby holes everywhere (they actually stored corn inside my shooting headphones...crazy). It was no longer cute when I found corn in the engine compartment of both Corvettes. Game changer and I went on a mice killing spree that lasted months. All my fault but I'm now extra careful to ensure no food source is in the garage. Fortunately their was no damage to the cars other than droppings and half eaten corn...the little buggers were gorging themselves. All good now!