Aside from the normal sports performance package goodies like the turbocharger and Garrett Water/Air intercooler, the Typhoon had such features as a 48mm twin-bore throttle body straight out of the 5.7L Chevy small block and a BorgWarner transfer case controlling the all wheel drive.
The stats on this SUV were impressive by standards of the day, and indeed even hold up to the top performing SUVs made today. It could do 0 to 60mph in 5.3 seconds and a quarter mile in 14.1 seconds. Those stats made it comparable to many decent sports cars of the day, including the Corvette and Ferrari 348ts.
These SUVs are obviously rare today, and they only get rarer as the years pass and those that were driven like any other car eventually fail or crash and are taken off the road. If you are trying to find one, I suggest you try prayer. In all seriousness, check your used car classifieds, and check eBay every week. There are often a couple listings on there, and they tend to sell for less than any private owner is going to sell one for in the classifieds.