Unpopular opinion:
For more than 90% of the population a car with an Otto engine volume of less than 1.5l is enough.
Anuthing above should be taxed heavily.
I've been a fan of little, simple vehicles for a while now. I have had a Geo Metro, Mitsubishi Mirage, and now I have a Suzuki Samurai. In all of these vehicles, I have had to deal with the same issue, when trying to get up to speed: The slowpokes in front of me. No matter how slow I go in my 65 hp little SUV, I end up waiting on someone in a much faster vehicle to get out of the way.
I drive a Prius and agree completely. It's fuel efficient and extremely utilitarian. I can fit ten foot lumber in it, or my two big stupid dogs and our luggage for trips. Even when my wife drives like a maniac, we still get around 45 mpg. We typically end up passing slow moving vehicles on freeway on ramps, despite it having a maximum acceleration of 0-60 mph in about 10 seconds.