I did one of these for my daughter's mini cooper s for the winter. I also had a pad on the side of the garage. It came with four anchors (pigstail style) and I added four more. It has stood up well including in some very high wind situations (40+ mph). It does the job and was cheap; I got hers during a sale for $170.
https://www.harborfreight.com/10-ft-x-17-ft-portable-garage-62860.html
https://www.harborfreight.com/10-ft-x-17-ft-portable-garage-62860.html
