One of my bikes is a 2010 model and its tube shapes and geometry are very aerodynamic. Manufactured long before the current marketing fad. The thing is really a rabbit and all I have to do is think about going fast, and it seems to do so on its own. That said, purchasing a bike for that specific characteristic is silly, especially for those of us who would not really benefit from the technology. While I enjoy riding that aero bike, it is not my favorite and I don't use it as often as some of my other bikes. I didn't purchase it because of its aero characteristics, (who even knew about that stuff back then), but because it was a very good price point for the component group it had. (I've since moved the groupset to another bike, which is my favorite and most comfortable ride.)