All it takes is a couple of dealers to get hold of a few GS's, price them at mid £40k's and the whole market will shift.
Autofiscina did this when i was looking (mid £30k's) and it shifted the whole GS market up as the first thing anyone does when selling a car is compare the market.
The one above may have low mileage but its a tech version, LHD, with non standard seats, it wont sell at that money in this country.
GS's are undervalued at the moment, i see a true value of a sub 50k mile, LE in favourable colours and condition at £35k. Now i am not just saying that because I have one. 3200 and Spyders have gone up, every Ferrari has gone stellar, so its expected. GS Spyders and GS MCV's should be well into the £40k's even as high as £50k and are currently pushing this.