I live in the UK, and the last car I bought was a SEAT Ibiza with a 3 cylinder 1 litre engine. I get 4.5l/100km or 52 mpg on long trips. 98% of the time my engine does under 2500 rpm.
I have absolutely no need of anything bigger and my car has all the comforts I require. I was also able to buy it for cash.
I've never quite understood the desire to own a large car with all its concomitant costs.