Drove one of those Calibers as a rental 6 months ago. Not the SRT 4! It was probably the lowest model available and it was the worst car I ever drove on the highway. Very hilly interstate roads in New Mexico and I would have to floor it and the car just wouldn't move up an incline. Got me around town very well.... just terrible on the interstate doing 65 MPH. It just didn't want to move at all....