I'm selling my 98 Ford Explorer Sport because within the next few years, I will be making some cross country trips and the mileage it gets is killing me as is. Naturally, I look at the Hybrids. However, I have some precautions and questions. Is the technology that reliable? I can't imagine repairs are too simple. If you are driving highway, are you using the gas engine 100%, therefor you are just carrying extra electronic weight (400lbs or something) more than if you didn't have the hybrid version of the car? Should I be looking at diesles instead? I'm wary of cars with over 75k miles. Is there a fast pick up in case I need to make an accelerated evasive maneuver?