My brother in law has a new Chevy full size truck that gets great mileage, not 40mpg to be sure but it's up there. The new V8 only runs on the 8 cyl. when needed,drops to 6, drops to 4 depending on the demand for power. He really likes it and the mileage is fair.
Hybrids being green is BS ,batteries wear out then have to be disposed of,they have to go somewhere. Batteries also have to be manufactured , again not so green. How long do they warrant the battery area against rust? You have to pay extra for them to start with then have battery replacement to pay for at some point. I would probably be too old to care by the time it saved me any money if it ever does. How long will the motors last? What about a starter that has to start the engine every time it's needed? I never owned one but these are all things I have heard or would want answered myself before I went for one. I would much rather see them working on some non-petroleum fuel.