The 1930 Bentley Blue Train came stock with a chopped top

1. The car pictured is not the car that raced against Train Bleu in 1930, it's a recreation
2. It does not have a chopped top, but a low roofline, if it was chopped, it would have been done after leaving the coachbuilder
3. The car used in the race was a Bentley Mulliner-bodied four-door Speed Six saloon, and not the Bentley Gurney Nutting coupé speed six people long thought used
source1: thewholecar(dot)com/1930-bentley-blue-train-recreation
source2: bentleymotors(dot)com/en/world-of-bentley/the-bentley-story/history-and-heritage/heritage-cars/the-bentley-blue-train(dot)html