The average difference between EV and a gas car is around 300 to 400 kg. With an average weight of a small car being around 1500-1700 kg, and an electric variant of the same car being 1800-2000 kg, the difference is basically nothing. It's, like, two large dudes. And that's smaller car, the difference in big SUVs becomes almost negligible. It's so nothing, especially compared to all the particles EVs don't emit, the only reason we keep talking about is astroturfed bullshit from the conservative car manufacturers. It's from the same playbook as wanting to get rid of wind turbines because sometimes they kill birds.