[Magoo]

If I may recommend, and I'm not sure if you're looking for a used or new dyno, but I'm gonna vote for a Dynojet 224xLC. It has the ability to add load to the vehicle to simulate weight, wind drag, etc in the same fashion as a Mustang Dyno and also be the typical interia only Dynojet. Mustang Dyno's while great for tuning tend to turn people away because they are "heatbreakers" and are hard to get consistant repeatable numbers from so people can compare.

http://www.dynojet.com/automotive_dy...o/default.aspx