How much EV1 DNA did GM put into the Volt?
 

Just wondering if GM put the lessons learned from building the EV1 into the Volt OR was all that valuable knowledge lost when GM crushed all the EV1s?

It wasn't lost. The Volt has the same T-shaped battery pack as the EV1, and may have even had a 4 seater hybrid concept of the EV1 before they were all destroyed. GM also had hybrid patents on file before the Prius.