Cracking job that is, proper flat-cap and braces van. Needs a thin trail of blue oil-smoke to follow it everywhere!

Negative terminal has an accessory connection point - not needed on the earth side terminal.

100 years ago this motorised conveyance made it non-stop** across the Atlantic.
*It didn't stop, but it did splutter a bit, needing engine maintenance en-route.

Late to the party and out of breath as usual. What did I miss?

Would be much better if the dubbed-on soundtrack was of a 2 cylinder Citroen.!
Watch it again with no sound, appreciate the smoothness of the driving and the miraculous lack of traffic.