Dave Metcalf and son Adam break the 400 miles challenge! Incredible... Okay guys, I'm going for it with my 12yr old son who loves Guinness. Left at 12:22 AM Eastern. Got some good advice from Tesla and my NASA engineer friends. It is going well so far 60mi in 12.4kWh avging 202Wh/mi including two big bridges to get off the island. After that down to 191 or less... I'll keep you posted at stops. Pray we don't get rear-ended! I'll autopost pics to Twitter- follow dmetcalf.