Originally Posted by Ape Factory

Given the fact the Z will most likely be based on the same chassis as the Infiniti Q50/60, and the Z will be (hopefully) neither be FWD or AWD, there'd be zero reason for a longitudinal engine layout.

The base engine, if there is one, is going to be the same twin turbo 3.0L found in the Q. Or...a higher output version of the 4-cylinder Mercedes-based engine which is producing up to 375hp in their cars. That would match what Ford has done with the Mustang and MB has already said they're working on a new high output 4-cylinder. They (MB) get increased revenue with no R&D and Nissan gets a somewhat lightweight and potentially powerful 4-cylinder mated to a DSG gearbox. Take a test ride in an Audi S3 which is every bit as quick as the current Z with more bang/buck when it comes to mods (short of going forced induction on the Z). If they do have a 300hp version of the 4-cylinder, it'll piss off the Q50/60 owners that get a 200hp version of the same engine. Maybe they'll be getting a bump followed by bumps for the "base" 3.0TT and RS version. Wishful musings.

Still, I think the base engine will be the VR30DETT. That's where they've put all their R&D $$$.