Travel The rental car shortage of 2021 isn’t over: Why summer travel is expected to drive demand April 1, 2022April 1, 2022Bailey Schulz, USA TODAYComments Off on The rental car shortage of 2021 isn’t over: Why summer travel is expected to drive demand The rental car shortage that upended travel plans in 2021 isn't over. Travelers can expect fierce competition at rental companies this summer.