I have both a 370Z and an 03' EVO with 370awhp and 340 awtq. Coming from a modded AWD turbo car you'll miss the midrange torque as the Z requires more rpm to extract power. Once above 5K rpm the car pulls nicely and would be able to hang with a 300+awhp EVO/STi at highway speed.
The interior is a much nicer place to be, though the overall visibility is not as good as in a 4 door sedan. The Z has a good road feel and a quick steering rack (not as sharp as an EVO but probably quicker than a STi steering.)
The Z is a fun car to drive, although the only few things you'll miss will be the turbo torque, the modability, the awd traction, and the practicality of a sedan.
