I could not tell from the link in the previous thread who actually makes these bikes. For example, Colnago makes a limited edition "Ferrari" bike. Is there an actual bike maker with some history behind these Alfa bikes?The "Stradale" is their commuter bike and is the least expensive of their line. Based on the design of the head tube / down tube junction, I'm not sure I'd want to get the Stradale up to high speed. High speed stability of a bicycle depends on the strength of the front area of the frame and, since the top tube does not meet the head tube, makes it the weakest point of the Stradale's frame.
Now for their high end racing bike capable of any speed see their 8C Competizione! It even has Campagnolo wheels as do many 4-wheeled Alfas.