Continuity mistake: In the establishing shots for the Furka Pass sequence, we see Goldfinger pass the Belvedere Hotel. Next, we see Tilly Masterson pass Bond. The order of the vehicles is thus: Goldfinger, Masterson, and Bond. When Goldfinger stops to buy produce on the hairpin turn, Bond is above him. We then see Masterson fire from above Bond. The order of the vehicles has changed to Goldfinger, Bond, and Masterson.
Continuity mistake: When the Lincoln is picked up by the junkyard claw, there is no dead body visible in the back seat even though the backseat is totally visible in the camera shot.
Chosen answer: The Beatles were wildly popular with the youngsters of the time and not so with the older generation, of which Bond is part. Obviously, Bond's comment shows the Beatles were not to everyone's taste in music, especially his. And it was a good line for comic relief.
Scott215