[dbloom]

This is a good point.

Two counterpoints though:

1. I posit (without evidence, because I'm lazy) that most people who buy "fast" new cars are more concerned about image than the actual performance specifications. For example, I suspect that the vast majority of original owners of Corvettes never take their cars to the racetrack. And in terms of image, number of cylinders and liters of engine displacement are much higher priority than dyno readouts.

2. More combustion chambers in an engine = higher power, higher manufacturing cost, and lower fuel economy. If you have less than $2000 to spend on a car, and you spend it on a 1980's V8, it's probably going to be slower than a three-cylinder 1.0L 2016 Ford Focus. But it's still probably the fastest option in your price range, so it's a good representation of how much you value performance in the car you choose to buy.