no acctually, his approxamate speed is 700mph. if wewe pay attention to the episode "thats what Marafiki are for" in the sonicx series, the military general even says so
The nyota posts in Sonic Unleashed clock Sonic running over the Speed of Light, so I checked it kwa walking slowly past it and that was 65mph! I've settled the matter kwa saying that Sonic runs at the Speed of Sound (700mph). As Super Sonic, he can exceed the Speed of Light.