I believe Jessica was saying car wreck and one of the timelines said for approximately ½ an hour, (10:15-10:47 a.m.), Chambers and Tellis were driving circles on Courtlands backroads.
This is what driving circles does to your vehicle according to Wikipedia:
Doughnuts performed in dust or mud are colloquially referred to as "circle work". Performing the doughnut maneuver can be hazardous. Strain is placed on the vehicle's suspension and drive train, which may result in mechanical breakdown with loss of control. Tires are also subject to severe wear which may result in a sudden loss of pressure or blowout
If Jessica had been making circles with her vehicle for some time, it might have created an undetected mechanical problem that caused her to loose control of her vehicle.
https://en.wikipedia.org/wiki/Doughnut_(driving)