Since their top speeds have never been explicitly defined, its not completely inconceivable that Sydney and Max could still keep pace with it, though im sure somebody would call BS, but Hiro is definitely not catching it.
Calling BS : Sydney is barely a maybe, Max with a top speed of mach 4 is a definite no.
The end of what Son? The story? There is no end. There's just the point where the storytellers stop talking.