We are going to be storing our 2015 Mini in an unheated barn for the winter.
What steps would you take?

 

I would be sure to put some traps and things to prevent any rodents from getting into the vehicle and eating away at wires/parts. Be sure to get a battery tender HERE so that you don't have to replace your battery after winter. Maybe also invest in a nice car cover HERE to help protect it from dust/dirt or anything else that may come into contact with it. If you have any questions, let me know!