Yes building an electric car requires more energy than building a conventional vehicle. According to https://www.quora.com/How-much-energy-is-required-to-build-

Yes building an electric car requires more energy than building a conventional vehicle. According to https://www.quora.com/How-much-energy-is-required-to-build-an-electric-car https://www.quora.com/How-much-energy-is-required-to-build-a..., this requires 2.1 year to amortize the difference.