well one of my very close friend installed goodyear tyres of the same size as u mention with a new rims in his vitz and replace his dunlop 175/70/R13 ... in his openion this tyre has better road grip and good feel inside a car ...
as far as im concern i m a big fan of dunlop
and this brand is installed in every car @ our home except suzuki FX
so cant comment on goodyear never try this brand...