having some service done and noticed a ovoid plastic thingy in the showcase. I was told it would let me see the traffic lights without craneing my neck. I applied it as instructed and how cool. Can see the light if it is directly over the car with out neck gymnastics. Worth the cost

 

Great,

Yes its curves the view.

What model MINI and year do you have. Euro Blind spot mirror also help seeing whats behind you.