I shrink wrapped my jet boat one year for storage through the winter. The wrap was very nice, and kept my boat from flooding during the few rains we had that year.
Come summertime. All my polished aluminum bits were oxidized to hell. Took me hours to repolish every thing. And apparently some rodent liked my vacuum lines. Lucky for me it was a jet boat and only had two vacuum lines
I would be afraid that with the car wrapped up nice and cozy. It would be a perfect home for little critters to camp in.