It's true that you can buy a cheaper car that is less efficient. However as a general rule cheaper cars are more efficient. Your $68k SUV is never going to touc

It's true that you can buy a cheaper car that is less efficient. However as a general rule cheaper cars are more efficient. Your $68k SUV is never going to touch the efficiency of a $20k Corolla, unless it's electric. Cars are one of those interesting goods where the more expensive they get the less effective they are at their core competency (safely and efficiently travelling from point A to point B). Watches are another example. You can buy a watch for $100 that you never have to wind or change the batteries on, and moreover gets its time from the atomic clocks in various parts of the world, so you'll never have to set it. Or you can buy a mechanical watch that gains or loses time which you have to wind for $10k. (I'm aware that there are reasons for buying a watch other than keeping the time but I just find the efficiency-price inversion interesting.)