If I had 140.000 € I'd rather buy the GT-R instead of a Porsche Turbo, and I say this as a Porsche enthusiast.

Because I'd save almost 70.000 € by buying the Nissan and be able to buy some mods and pay some upcoming gas bills.

The Nissan is no match for the Porsche Turbo on the Autobahn, but on any curvy road or race track....and that is what counts for me, because I live in a hilly area, 2 hours away from the Nürburgring and 1 1/2 hour away from the Hockenheimring.