Caveat - it doesn't specifically call it an Ampeg SVT sim, it's called something like Big Tubes Amp or some such thing. I just assumed. Sorry to mislead.
Update: I just got a chance to check out the Ampeg SVT model, it's called the Bass SuperTube VR, and it's modeled on the Ampeg SVT VR. They do have a model called the Bass SuperTube CL that's modeled on the SVT-CL, but I assume you have to upgrade to the full version to get that. :(