From my experience of BRG the Jaguar examples from the 50s early 60 are some of the best.
Agreed, that's why I went for Jaguar Brooklands Green as used on XK140s for my car. It's the same shade that MMC use for the modern Brooklands series cars.
Tim H. 1986 4/4 VVTi Sport, 2002 LR Defender, 2022 Mini Cooper SE