In practice, I've found that the fuel economy between my 2013 Focus and my dad's 2011 Corolla to be quite different, particularly in the highway, and especially in the winter.
The lifetime average of the Focus is around 8.0 l/100 km, mostly city, and 7.3 l/100 km for the Corolla. Of course the Corolla has nearly 80000 km on it now, and the focus 20 000. Both are 5 speed manuals.
Hatch vs Sedan though.
I don't keep a lifetime average, but Lady Noto's old roommate's 2012 Focus SE sedan is averaging 6.1L/100km (pure highway), which is about what I get in the Corolla to Ithaca. In the City, the Corolla hovers in the low 8s in the summer and mid-9s in the winter. Suffice it to say that these are all reasonably efficient and fuel economy is fine.
Beyond that, the merits of the car - large turning radius? No thank you. Fixed with smaller wheels? Easy, and cheaper for tire time.
Small trunk opening? How much do you haul? Is the hatch better for you?
All reasonable questions. The focus is a great car and is flexible with how it can be ordered.
Fair points. I still quite like the focus and a comparable rolla would have cost like 3k more at least... I paid under 20k (AFTER taxes and fees etc) NEW.
When my Focus is in the GTA it achieves phenomenal fuel economy. The corolla is just more consistent.
I've also never had the turning radius issue.
Overall it was a good purchase and I don't really regret it... well, if I knew what I know now (ie that my mom was going to get an Odyssey) I may have bought a wrangler (HA! the fuel economy would give me a heart attack) or a miata (it would have cost like 4k more but the 8k off + 0% financing that came a month after I bought the focus was a pretty decent deal).