To destroy the first radar tower, you will need to take out five security drones on the track. Use Penelope's car's bumpers to knock them down. Use and . Make sure to collect the energy from the cars once they are defeated. Once this is done, Bentley will open up the first gate. Ride up to it, and you will automatically destroy the tower and land on the next track. Destroy five more security drones. Collect their energy and use the ramp to destroy the next tower. You will then land on the last track. Destroy 5 more security drones. Collect their energy and use the ramp to destroy the last radar tower.