Those would be truly disposable cars.
Crime family boss: "Hey, so we can dispose of the dead guys in the trunks at the same time. Progress. Two things at one time."
And exactly HOW MUCH does this spiffy new battery cost???
$100, $10,000 $100,000 EACH?
Until the cost is minimal this is nothing more than a spiffy lab experiment that already costs Millions of $$$$.
This is TRL 3-4 at best. /Spit