Tom Brady Hertz commercial
Tom Brady starred in a Hertz commercial when the car-rental company announced its massive EV investment.
  • Hertz said expensive repairs helped inform its decision to downsize its EV fleet. 
  • The move warns potential EV owners about "hidden" costs. 
  • Repairs for EVs can cost more than those for gas-powered cars. 

Hertz is backtracking on its big EV bet.

The car-rental firm said it's selling 20,000 EVs — about one-third of its electric fleet of Teslas, Volvos, Polestars, and more — partly due to repair and maintenance costs.