Sodium ion batteries have, at least currently, worse energy density than even LFP batteries. Also, current costs of sodium batteries are quite high. The latter

Sodium ion batteries have, at least currently, worse energy density than even LFP batteries. Also, current costs of sodium batteries are quite high. The latter will change over time of course, but energy density remains a problem. Nobody really wants a car that only goes 150mi, especially as their only car.