Some cars leave a paper trail; the Lotus 43 left a name and a place in Lotus's list. What follows is what can be said with a source behind it. The shape is credited to Colin Chapman / Maurice Philippe.
Where it came from
The Lotus 43 was a Formula One racing car designed by Colin Chapman and Maurice Philippe for the 1966 season. Hampered by its heavy and unreliable BRM engine, it won only one race, the 1966 United States Grand Prix.
In context
In the Lotus line-up the Lotus 43 has a clear place: it replaced the Lotus 33; it handed the line to the Lotus 49. Nearby in the Lotus catalogue sit the Lotus 100T and the Lotus 101.