Spiders!!! That's a big dent to the wallet Robin if you were to upgrade.. Could you warrant £40k+ extra over your beloved GTI to change?
...."Warrant" or justification isn't really a major factor. It's really whether I want it and then, of course, if the funds are available or not. You only live once (AFAIK!). The first step will be a test drive. Plenty of time ahead to decide if desirable and if do-able. I might desire but not be able financially without risking my future, or I might be disappointed by the car (probably doubtful) - Who knows.
I always follow my heart (or at least try to!). At this stage I'm in lust