The French site Scoot Infos is the motherlode for performance figures and lots of other stats. They do not do 0-60, but time from a standing start to cover 100metres. Take the fuel consumption figures with a large pinch of salt though, as they include performance testing so their figure is probably the worst you'd ever get.

http://www.scooter-infos.com/essais.html" onclick="window.open(this.href);return false;

Use the pull-down boxes next to where it says: "Faite votre choix" to select manufacturer and engine size. When you reach the bike you want, look at the top of the page and click on the Union Flag for a machine translation into english(ish).