I just got my new 90D last week and love it so far. Most of my driving is on normal roads, but I've had to take it on the expressway twice so far and noticed that the car feels very loose above 75MPH. I haven't taken it over 80MPH, but the best way to describe it is that it feels like I am driving headfirst into a strong storm and have to fight a little to keep it in it's lane (even with no wind at all). I checked the tires and they are all at 45PSI and the car feels normal at speeds under 75. I live in MI so I'd like to avoid a service call if possible. Has anyone else experienced this?