OK so this is putting the cart before the horse as I don't have a MCS yet....but when I do work this out, does anyone offer a two tone-trumpet style horn that can be put in place of the standard horn. I would like that classic brittish car two note blast.

 

plethera of onf and links if you search, far more options than I could provide you with in one simple post.

 

The problem will be finding a place for it ! The Mini does not have a lot of room under that hood.