There's other factors besides being very flickable that make a bike fast on the street, IMHO. Factors that instill confidence, for example. Like stability, compliance, bump absorption, braking without front-end dive w/an increase in wheelbase, for example. Ever read this article from
BIKE magazine? The old girl acquits herself quite nicely. The new one is amazing.
http://onfinite.com/libraries/375392/fd4.jpg
http://onfinite.com/libraries/375393/6b5.jpg
http://onfinite.com/libraries/375394/551.jpg
http://onfinite.com/libraries/375401/b8c.jpg