It's not ever how fast it will go..or how fast you can drive it. It is always about can you get it stopped in time. C's have very different braking characteristics from cars or pick-ups. They don't stop on a dime. If you do have to do an emergency stop, you have all that trash inside that is suddenly flying forward and that makes a driver back-off a bit...
I'd say this to you or anyone...drive the 2 second rule and adjust to 3 as needed.
Obviously, I didn't read all the replies before typing this one. Sorry folks..it is one of my 'hot buttons'..could not help myself.
Gary Haupt