I have a 1.6. The day i got out of my 325 and into the 1.6 a little knot in my stomach appeared.
However...i didnt buy a 2.0 as i figured the mpg would be worse. After a bit of fiddling and swapping of bits, i quite like the 1.6. No idea what the mpg is, average says 32.0 on the computer (it lies, i know!) but its fun. I also have a 1.9 159 jtdm that returns about 33.0 mpg on the computer.
Probably would have been easier buying a 2.0 to begin with but i like a challenge!!
Edit: tax is different on the 2.0 to 1.6? Really?