It's Nissan's idea of an entry level sports car. I can't say I like the styling, but if they do release it with a turbocharged QR25DE it might be worth a look. But if it makes production without the turbo, I don't see any reason to give up my 240SX for it. Much more attractive, still runs just fine, and I am not dissatisfied with the 155hp the KA24 gives me. (though it certainly could use more )
they wont use the Qr25DET for a stock boost motor. one reason why, the rod to stroke ratio is extremely high. thus giving the spec-v great bottom end power. Also, it cannot rev high due to the ratio, and the size of the pistons. Also, it is dampened by the balancer shaft which if removed lessens the life of the engine.
Nissan may use another Qr series motor, but the Qr25DET is a N/A motor by heart, and would be foolish to change.