......there, before my eyes. on p. 12 (top) was an article on the afrementioned Venom (article is entitled "Venomous Snake"). However, as soon as I paged onwards, I found that low-slung thingamabobbie which I had confused with the Venom. In retrospect, I guess "Venom" was a non-COBRA name, and I guess I was therefore thinking non-cobra. In any case, there in black and white is the car I saw on the North Shore (of Massachusetts). It's called a "Dragon" and it appears on pp. 28, 46 and 71 (ad for shop in New Hampshire that makes them). Subsequently, I have seen a wild metallic green "Dragon" and talked to the owner. He says people mistake it for a Beck-built Lister all the time!
Sorry to have extended my confusion to innocents.
Starboard-side battery is double-shotted and run out, in case I receive any broadsides from that other glacial moraine lying to the south of mine!