as for the cherokee, i would settle for this...

It used to run an 11.71 on street tires (awd of course) with just a NA 408. Now they are rebuilding it and were planning on seeing low 11s, but instead they are building the motor for nitrous and think it might be somewhere in the high 10s. Pretty cool for something driven on the street and being an SUV.
http://krcperformance.net/newcontent/Jeep.html