I wouldn't consider the Spark to have much in the way of typical luxury components. The car feels pretty cheap inside even when compared to the Prius interior. It made the Volt interior seem truly luxurious. I still like the car, however.Shame GM Marketing doesn't try to push the luxury elements.
As a compliance car they shouldn't need to push the gas savings. However, if they actually become serious about selling it they will have to emphasize savings. It's one thing selling a performance car, but another thing entirely selling a performance minicompact BEV.