I'm surprised a lot of you guys haven't heard of the TIV before. Its been around for a few years now, and last year Discovery Channel did a series on it and the DOW (Doppler On Wheels). The DOW seeks out the tornadoes for Sean and will only send the TIV in if it isn't too powerful. If you think the TIV2 is a heap, you should see the old TIV!!! It started life as a Ford F250 (or was it a F350?) and was always having problems, it weighed about 14,000 IIRC on the standard (but enhanced!) Ford frame.

Roger