I certainly do have the 1.4 and it does struggle when fully loaded with people, but still keeps up with traffic, just need to adjust your driving, i.e lower gears. I drove a 1.6 ford focus (not the brand new one) today on my driving course, and it felt poor to be honest, that may be down to the fact that the car had four people in it, but it was not very good! :) I am not sure you can really take my opinion on this as "set in stone" because this is the only car i have driven long term. One thing to add is that it will happily cruise at 90 (almost too happily as i found out when i went past a speed check, looked at the speedo and saw 95!! ;) ) It has never got to the point when i feel i am holding up traffic when the car is fully loaded, just dont expect to have a car full of people who want to go blisteringly quick, becuase it wont happen fully loaded! :o