I'd still pick the clio to own, not a big porsche fan.....unless it's a gt3 ........then maybe.
i managed to kept pace with a porsche cayman the other day and he wasn't holding back, he gained a small gap on the straight's then i had him back in the twisties, keeping in mind this was a five year old car i'm sure a 1*2 could take an older porsche with reduced bhp and no gadgets to keep him on the road.
That might have been my Granny in the Cayman.