Well this is probably not all that useful for this post, but I just had to post since it looks like a lot of people view this post, but no one responded. Well I do have a clutch steer.... and yes it is mod..... well to steam powered But to answer your question, I love it because it lets me only have one power source, saves me to trouble to dealing with 2 engines. Not a big deal with electric motors, but a big headache, not to mention cost, with steam power.

I love the clutch design of the tamiya 1/16. It works really well. I guess the down side is you can't drive each track in the opposite directions at the same time - it just stops one side or the other. So no spins, and less power than 2 motors. However, I'd just like to say that I only have the one clutch drive tank, so I can not compare clutch steer vs 2 motor But I am very impressed with my old tamiya 1/16 clutch steer, the clutch and gearbox performs beautifully for my needs.

The main reason that I wanted to post is that I was wondering if anyone know of any other model that has clutch steering? During my research, old tamiya is the only one that I could find which uses one motor / clutch.

Thanks,
-Crabfu