Icon is fresh off of the reveal of its Tesla-powered 1949 Mercury coupe at the 2018 SEMA show, but it has another electric powertrain swap to show off. The company has installed an electric powertrain in this 1966 Derelict Fiat 500 Giardiniera. Icon founder Jonathan Ward published a YouTube video to show off the electric 500 Giardiniera, which was…