I would be interested if Toyota made a supercharger for it, and you could get it with full factory warranty, and it wouldn't void the drivetrain warranty. I'm not sure if I would want to do an aftermarket one without the warranty though. I had problems with the aftermarket supercharger on one of my previous rides. I ended up with a leaky supercharger just after the supercharger warranty expired. That expensive supercharger oil was leaving a puddle in my driveway. The worst part was that my engine was also damaged, probably due to the supercharger. Drivetrain warranty was void Also, there were driveability issues, including problems with cold starts in really cold weather.
Thats probably what I will do as well..
Since I have always owned "used" cars I was never really reluctant to modify my cars but buying new, I don't know if I will feel comfortable tinkering with this and that until I am atleast comfortable with the car. Because of the ULEV2 rating and no GG tax restrictions, I bet additional horsepower will be very easy to come across on this car with a small amount of aftermarket.