There's a fair chance my 1999 ford mondeo v6 will still guzzle gas when the 2020 Teslas need their batteries replaced. I _DO_ want an electric car, but I want

There's a fair chance my 1999 ford mondeo v6 will still guzzle gas when the 2020 Teslas need their batteries replaced. I _DO_ want an electric car, but I want it with a built in nuclear energy source that'll last at least 500k km before needing replacement.