I test drove a Q50s today at my local dealer. Metro Infiniti in Monrovia, CA. They're currently selling vehicles outside of pre-orders. I currently drive a 09 G37s and I've had my eye on the Q50 for some time now. The driving dynamics are close to equal. Even with the 19in wheels I thought ride quality wasn't any worse than the G37s. As a matter of fact I drove streets and the freeway, I can honestly say it rides great. The one thing that struck me was how quiet the cabin is. Infiniti has done away with a lot of the engine noise. I love my 37s but looking at both side by side my car feels dated. The Q50s has a lot of pop to it. Pictures simply don't do it justice. Yes.. same motor.. same trans carried over from the G. Get over it! Yes, I do plan on purchasing the Q50s.