Where to see Indycars irl in the UK?

As in like in museums or show cars. Indycar is no where near as popular here but i really want to photograph an indycar. does anyone know where any museums that have indycars are? or maybe are there any public events where they show them? I know that mclaren keep some of their indycars on display in woking, but they're really tight on who they let in.