A reckless driver faces a variety of charges, after leading police on a high-speed chase -- southbound on I-15 -- Tuesday morning.
Authorities say the chase ran from Orem to Nephi -- about 50 miles -- reaching speeds of 120 miles per hour.
Eventually the suspect ran over police tire spikes, but continued to drive on her rims.
Sparks from the rims apparently set the suspect's car on fire, finally forcing her to stop.
Police could not immediately identify the woman. Her car has California license plates.
There were no injuries.