Still prefer supercharger over turbo in a mid engine car. The power delivery is more N/A like and since it is belt driven a bit less boosty, better throttle modulation.
That said superchargers feel old now that turbos are so sophisticated. Modern day turbos build huge boost and torque very low - say 1500 rpm - and then run out of breath. That said, I think the setup for the emira is perfect. Safely building out the Toyota platform and delivering a more linear driving experience. From a numbers perspective 400 hp, nearly 320 tq and weighing 3200 lbs is pretty damn good. I remember thinking anything over 1:10 ratio feels like you can really move the weight, this is already well past that. And while the weight is there so are the creature comforts. A very reasonable compromise for a truly stunning design.
The rev cutoff is stupid. Feels thoughtless. It should bounce or be softer. That’s something to address with a tune.
To the guy shifting at 3500, that’s too low. You are not going to experience the power unless you are in the upper half of the range regularly. Shifting at 3500 is better for modern turbos where you are already max torque at that point. I bet you would enjoy the i4 turbo more than the v6 with that style of driving. It will probably feel faster and more alive around town.
The rpm limit is something that is honestly disappointing. 6800 feels unusually low. It should really be 7000 minimum. I may just have to recalibrate my brain. I usually think of the last 4k as the fun range. A tune might help with the upper RPM limit but it may also help to widen the feeling of the upper power band so the RPM limit doesn’t feel as restrictive. Not sure if that makes sense but if you have a really peaky engine that only makes power at the top end you are going to feel like - damn it why can’t this engine rev higher! But if that power band is wider you are going to feel like you have enough room to play and build max power before the next shift.