How much better are hybrid cars then non-hybrid cars?

Apart from the power train there is almost no difference whatsoever. They all have a frame or chassis, 4 wheels, suspension and other running gear, there might be small differences to accommodate the...

Both use internal combustion engines that use gasoline. Both use a transmission to maximize ratio of rpm and speed. Both are equipped with internal climate control mechanisms.

They get slightly better city mileage then conventional cars. They would help reduce foreign oil dependence if people drove them.

From about $3000 to $10000 higher in price than conventional cars.

They are different, not necessarily better. Hybrid cars usually use a combination of batteries and a small combustion engine, so they emit less carbon dioxide (from burning fossil fuel) than an older...