If you can increase your budget to 30k, you could consider a Slate EV.
Electric cars are still an underdeveloped form factor, so it makes sense that you can't get a car big enough for many passengers that is cheap enough for your budget (the battery needs to scale for passengers/weight, so the market so far is tiny cars or big expensive cars. The middle comes as the tech develops)
Electric cars are still an underdeveloped form factor, so it makes sense that you can't get a car big enough for many passengers that is cheap enough for your budget (the battery needs to scale for passengers/weight, so the market so far is tiny cars or big expensive cars. The middle comes as the tech develops)