I have no issue with the Q60 platform. Mid-front engine with double wishbones at all four corners - that's a good place to start. The 370z, is IMO still a great machine. It's absolutely dated, but its also in a class of its own - a no-nonsense analogue
sports car with great fundamentals and a very effective (if not so sweet) powertrain. The interior looks straight out of 2009, but the ergonomics and controls are excellent. Even being 10 years old, the design of the 370z has held up, though I've never warmed up to the over-endowed rear flanks. Its a good looking car.
I hope a new Z doesn't change the formula too much. Things that need improvement:
-Interior: goes without saying. The current car's design and layout are pretty good, but some things that were questionable even in 2009, like the
stupid ugly LED fuel indicator, are laughable in 2019.
-Refinement: The 370z feels agricultural. Not saying it needs to be a princess, but just clean up the rough edges. Nissan spent a lot of time getting the 350z to sound just the way they wanted it to. I never liked that sound too much, but I don't feel like they even tried with the 370z. It sounds just bad as delivered.
What it doesn't need:
-Tons of tech: Maybe save the hybrid awd shenanigans for the GT-R...though I wouldn't mind an unobtrusive and lightweight mild hybrid setup.
-Tons of power: ~350 is enough, innit? I spent
the last few days driving around in a 2-ton barge with 300hp and it felt perfectly fine, quick even.
-Turbos: I think the big N/A V6 is the most charming part of the Z. Probably becoming increasingly untenable though.
-Big increase in cost
I hope Nissan keeps the Z as a very attainable and straight forward sports car. I don't even think it needs more power (its plenty fast as is), just sweeten up that powertrain a bit, update the styling inside and out, and put it on sale. I'd be interested.