Four Wheeler-February 2002:

Jeep Grand Cherokee Overland
Performance:
0-30 mph, (sec.) 3.22
0-60 mph, (sec.) 8.77
Quarter-mile (sec. @ mph) 16.81 @ 83.01

Four Wheeler-February 1998:

Jeep Grand Cherokee 5.9 Limited
Performance:
0-30 mph, (sec.) 2.65
0-60 mph, (sec.) 7.90
Quarter-mile (sec. @ mph) 16.14 @ 86.3

Both test results, are courtesy of Four Wheeler's, 2002 and 1998 Four Wheeler of the year issues.

These results are from Four Wheeler Magazine.  We can not substantiate the accuracy of these results.  Motor Trend tested the 5.9 in 1998 and got different results on the 5.9 model.  Motor Trend 5.9 test results