I decided to drive on a county road by where I live. I dogged my iQ and drove very aggressively entering corners hard and everything. I will say the chassis is amazing, the steering though quick lacks feel. however back to the point, after doing that my iQ CVT did have a whine noise that was mildly loud, however after about 10 minutes of going back to normal driving it went away. I think it is simply because the fluid got hot. I am no expert at all though. I will say even though i was going at what seemed like crawling speeds I had the biggest smile on my face.