My Citroen C5 - 56 plate, with 1.5 dci engine, fits two large road bikes in the boot with the seats down, and two track bikes plus rollers AND one rear seat passenger on the way to Newport every Saturday. It also returns a constant 52 plus mpg.
Also, it makes me a 'proper cyclist' since it's worth way less than my bike (I paid £900 for the Citroen). I used to be into cars, but now much prefer to prioritise bikes. Also I always hated French cars, but don't mind the C5 at all. So long as it fits my bikes in, and costs me pennies, I'm happy. It's overdue a belt change, but I'll probably just wait till it stops working and bin it. It even has bells and whistles all working , including climate control!
I find small cars over rated and over priced. Not sure what the advantage is meant to be, just less practicality, and higher prices if you ask me. Show me a small car which compares value wise with my car! I doubt you'd find one to beat the fuel economy too unless you're paying more than you could for something you don't pedal!