If anyone wants to hear what the clubsport sounds like, check adam_volkswagen on Instagram for a video
Yes, heard that, sounds great. Which is more than can be said for the standard wheels! Really don't know what they were thinking.
I agree, it sounds fine in an acceptible way without attention grabbing pops 'n bangs!
On the wheels it's clear what they were thinking?
Let's make the standard wheels bad enough that everyone will have to pay up for the 19" wheel upgrade and DCC while they are on the hook for options? 
The extra cost option that boils my p1$$ is the charge for paint. VW will have priced in the cost of painting a car with the ‘free’ colour and it costs no more - or very little more (the cost of a few grams of metal flake in metallic paint, or mica particles in pearlescent paint) to paint a car with one of the extra cost optional colours than it does to paint it the ‘free’ colour. All cars will get primer coat, base colour coat and clearcoat, irrespective of the colour chosen (the exception is Oryx White, where there’s an extra stage in the painting process compared to other colours).
The free colour is often one that’s not popular - remember Black Rubin that was the free colour on the mk7.5 GTI? - so VW know most people will pay extra to have a nicer colour.
I think the Seat approach to paint colour is much better - cost of paint is included in the list price irrespective of which colour you choose.