Automatics: Turn steering wheel all the way to one side, place left foot on brake pedal, and give the gas 1/2 pedal, then release the brake pedal as you give it full gas. It three seconds there will be no one near you as you go round and round flinging them to the periphery. Aim to the exit and give it gas.
Sticks: Slight variation, turn wheel all the way, place in first gear, drop the clutch and floor the gas. The rest is the same.
Once safe, get out of the car and report it car jacked and stolen, asap.
Your plan makes a lot more sense than plowing forward and beaching your vehicle on a small mound of miscreants