I recall following a project about 15 years ago where someone converted a car to electric using a lithium battery for range and a bank of ultracapacitors to inc

I recall following a project about 15 years ago where someone converted a car to electric using a lithium battery for range and a bank of ultracapacitors to increase peak power and handle the energy from regen. Here's the page on the project: https://www.metricmind.com/ac_honda/main2.htm https://www.metricmind.com/ac_honda/main2.htm