A road test of the 2006 model by Road & Track magazine yielded a 0 to 60 mph time of 4.6 seconds and a quarter mile dragstrip of 13.2 seconds at 104.1 miles per hour (167.5 km/h). Such numbers made the SRT-8 Grand Cherokee the fastest accelerating vehicle within the SRT8 lineup (which at the time included the Chrysler 300C, Dodge Charger, Dodge Challenger and the now-discontinued Dodge Magnum), and third only to the SRT10 Viper and SRT6 Chrysler Crossfire among all SRT tuned vehicles. There is no electronic speed governor employed, leaving the top speed rev-limited (revving to redline in top gear) to 170 mph (270 km/h).
To achieve superior on-road handling, off-road gear has been removed to make the SRT-8 lighter. The SRT-8 uses an NV146 transfer case, which uses an electronic-applied clutch pack to transfer 0-50% of torque to the front axle but has no low-range or manual controls. The front and rear differentials are both open, with no limited-slip capability. Its ride stance is significantly lower and the front fascia spoiler gives the vehicle 7 inches (178 mm) of ground clearance. The Grand Cherokee SRT-8 was the first SRT vehicle to wear the Jeep emblem.
A total of 11,775 Jeep SRT8s were produced. wikipedia
