I think it is possible that many car mechanics and dealers provide a paid service to convert broken gas cars to electric cars by replacing the broken gas engine with a electric motor, and installing a electric car battery, charging port, and other electric parts needed for an electric car.
Car dealers may not want to sell used gas cars which gas engine have a reputation of breaking down a lot, so the car dealer may convert used cars to an electric car.
Car dealers may not want to sell used gas cars which gas engine have a reputation of breaking down a lot, so the car dealer may convert used cars to an electric car.