Shouldn't happen. 2011 BMW M3 - 12.4/114 vs. 13.4/104 for the Jeep.
2012 Jeep Grand Cherokee SRT8
C/D TEST RESULTS:
Zero to 60 mph: 4.7 sec
Zero to 100 mph: 12.3 sec
Zero to 130 mph: 24.4 sec
Street start, 5–60 mph: 5.3 sec
Top gear, 30–50 mph: 3.0 sec
Top gear, 50–70 mph: 3.3 sec
Standing ¼-mile: 13.4 sec @ 104 mph
Top speed (drag limited): 157 mph
Braking, 70–0 mph: 166 ft
Roadholding, 300-ft-dia skidpad: 0.85 g
