Do you do much driving outside of town? If you are up and down the A1, A19 etc then go for the bigger engine. If not, go for the bigger engine . Personally, I'd rather have that bit extra and if you don't do big miles, don't think you do, then the mpg difference will be so marginal over the year that it isn't worth worrying about.Just test drove yaris cross, I like. Question is 115 or 130 hp...drove the 130.