I'm gonna need a daily driver pretty soon too. My stang is not going to be very practical during the winter. It all depends on what you like. If you really like a car that handles awesome then the focus is probably very nice for you, but if you want a fast car that is a thrill to drive then you go for a rip in your stang. "No Replacement for Displacement" is all great as far as speed and power goes, but handling is a totally different story. You are lucky to have both cars, one for any mood your in, so just take whichever feels right at any time and have a blast.
There is No Replacement for Fuel Displacement 5.0L All The Way.
Horsepower and Torque isn't magic, its physics, Bigger Engine = More Power
I Live my Life a Tank of Gas at a Time, For That Day or Two I'm Free...