Obtaining Jessica's Phoenix glitch
Just before putting Jessica in the car, toss a satchel charge on her car. Then, walk into the blue circle, press Y to put her in the car, then quickly press LT to detonate the bomb. The screen will blank out for a moment before showing you putting Jessica in the car. The mission failure screen will appear because she has been killed by the bomb. Quit the mission and you will keep the car. Note: You cannot do this from a clipboard replay.