1.2You might be happier with the 1.2. It has better mid range than the 1.1 so nicer to drive. The additional 100cc makes no difference to fuel usage.
Tyres are interesting. I get considerable miles from the 100HP tyres but have to put up with poor turning circle and harsh ride. Mrs Dave gets barely a year from her 1.2's 13" tyres. I think they are really not wide enough leading to scrubbed away shoulders. In my opinion, 14 x 175 are at the sweet spot between width and side wall height.
With nearly 200k miles on it
1.1
With over 200k miles on it
Both on 155/80 R13
Fronts are an easy 20K on Toyo nanoenergy, I could probably stretch to 40K. Rears last till the rubber cracks
Something is badly wrong.barely a year