Former F1 champion Jenson Button has added Jimmie Johnson's crash helmet to his growing collection and revealed he hopes to race against the seven-time NASCAR champion at some point in the future.
Helmet swaps are seen as a sign of respect between drivers and Button has amassed a wide collection belonging to fellow drivers over the years.
On Tuesday he posted a picture on Instagram with the caption: "Every driver helmet swap is special but this one is another level. Shake N' Bake @jimmiejohnson you legend! Hope to race wheel to wheel some day. #nascar meets #F1"
Every driver helmet swap is special but this one is another level.