Are you sure you aren't interested at this price?
The Model S/X are considered some of the safest vehicles on the planet, even breaking testing equipment, while I'm not convinced you'd do as well in that 20 year old del a Sol (or any older vehicle for that matter).
And once you start dealing with kids and safety, it becomes even more important.
[ADDED: The mass-market Tesla is going to still be a premium vehicle relative to other options. There's nothing wrong with that. But it's unrealistic to expect that crunching the numbers the right way will make Tesla the optimal financial decision for everyone.]
Edit: Still a (relative) good deal though, depending on what car you'd otherwise have bought.