I have a 2021 A7 with 7500 miles, this is my third Audi, loyal customer. Today I noticed a propane smell when I stopped at the store and didn’t think much about it until I got home and continued to smell it. I opened the hood and no smell. Also the cab is clear. The smell is so strong the whole garage smells even 1 hr later. The engine department was still hot 1 hr later. Temp was half (normal). I moved the car outside for now. Any thoughts? I figured I would call the service department tomorrow. Definitely not a dead animal smell. Tires and under carriage where good. Thanks for your feedback.