Nebohtes showed off his preliminary moduar system interaction spreadsheet and how it would work out for the Freelancer, Redeemer, Cutlass and Connie. Based on the system, all of them came out with pretty good stats for velocity with some interesting effects:
Cutlass has lots of junk in the trunk: rotation would be centered very near the back which brings up interesting gameplay possibilities. Looks like a good pirate or search and rescue with decent speed and lots of room for cargo. Also in the demo he gave it lots of battery power so it could run short periods without main power on.
Freelancer turns out to be pretty fast but not terribly maneuverable. That's probably a design intention although he admits he isn't factoring articulated main engines (as seen in the commercial) into that. Long range mother-trucker.
Redeemer: mass/volume about the same as Freelancer but with much less interior room. Ends up being shorter range (go to mission point, get it done, go back home) but has lots of power to spare for shields/weapons.
Connie ends up looking both fast and pretty nimble, but performance drops rapidly the more you load her up.
And all of these behaviors are emergent: he isn't saying "ship X has max velocity Y" he just (well not "just", this is a labour of love/mania) creates the modules, plugs them into a power/heat/cooling series of tubes and shows the results. Pretty darn nifty.