It would be a good idea but it could have some problems. The Electric SBR4 has some flaws too. 1. It delivers the same power as the gas one does. The electric one might loose a horsepower or two. 2. It has the same noise as the the regular one which it shouldn't. 3. The battery looks almost decritive. 4. It still has the fuel gauge. Maybe we could make an electric car but not based off a gas-powered car.
I found some electric vehicle mods. Some of these are marked as outdated but I hope they work just fine! Pigeon: https://beamng.com/resources/ibishu-pigeon-electric.1631/ Sunburst: https://beamng.com/resources/hirochi-sunburst-electric.1220/ Bolide: https://beamng.com/resources/civetta-bolid-e-electric.1648/ K-Series: https://beamng.com/resources/etk-k-series-electric.1675/ Pessima (2nd Generation): https://beamng.com/resources/electric-pessima.900/