How much horse power is in a Chevrolet Tracker?

It depends on the engine. The older trackers had a 1.6L 4 cyl that had 95hp. I have a repair manual that states that some had a 1.8L 4 cyl, but they are apparently very rare and I don't know the ratings. The most common engine is the 2.0L 4 cyl which has 127 hp @ 6000 rpm and 134 lb-ft of torque @ 3000 rpm. Lastly in the 1999 and newer models there is the 2.5L V6 which has 155 hp.