I agree - it is too much. It is very close to the price of used Roma or Portofino—both benefit from the V8 and the badge and, most importantly, reasonable depreciation.
Get the Apple/Android screen fitted that folk on this forum rate - should cost about £1k and I believe it works on dead nav/radio systems. Then use Waze.
Looks lovely although very similar to the Grecale. If you have a good condition GT/GC spend £5k at the trimmers to wrap all the dodgy vinyl in leather and Alcantara - save yourself a fortune.
I reckon that the GT V6 will be a great buy in a couple of years when used ones with 10k ish miles hit the market. I just hope they sell in some volume to create the opportunity - it will be hard for folk to pass up on a nearly new Roma or GTC Lusso so this could be a small second-hand market.