If I read the article in the worst possible way it suggests the hybrid capacitor stores 260 Wh/kg and produces 300 W/kg. The Tesla battery stores 272 Wh/kg and

If I read the article in the worst possible way it suggests the hybrid capacitor stores 260 Wh/kg and produces 300 W/kg. The Tesla battery stores 272 Wh/kg and produces 207 W/kg. So this suggests the hybrid capacitor would charge 1.4 times faster. Next question is the price, the article doesn't give a straight-forward answer other than that it's significantly more expensive. In theory (no hard proof) the hybrid capacitor would last longer. Regardless, a promising development.