The fifty thousand pounds sterling insurance claim would be equivalent to about one hundred forty thousand U.S. dollars at the time or about 1.4 million U.S. dollars in 2023.
As Rex crosses the land border from Spain into Gibraltar (the actual gated border is not shown) in the white Lincoln Continental, he is pursued by two Spanish Guardia Civiles on motorcycles. They are shown dodging the lowered barrier at the airstrip road crossing, and a few seconds later they peel off on the runway as his aircraft takes off ahead of them. In reality, they would not have been allowed to cross the border and enter Gibraltarian territory. Earlier, in the scene with Stella and Stephen in the Hotel Andalucia, the pair are shown after lovemaking with the bedclothes barely covering Stella's left breast while Stephen is dressing. All of this scene was cut from both the Gibraltarian version shown on the Rock and the version shown in the Army Barracks Cinemas (the Globe) throughout the British Army of the Rhine (BAOR).
The little red car Rex and Stella drive to the airfield is a 1946 MG TC "Midget".
The white car Rex hires in Spain is a 1962 Lincoln Continental convertible.