Goldgalaxy, gold writing, i take it the colour of your galaxy is gold? Well anyway, the first question you asked is the 64000 dollar question. Theoretically speaking, if an engine is looked after then they should be no reason why it shouldn't achieve 'spacecraft' mileage albeit changing wear and tear items. Second question, the engines fitted in the mk3's are Ford engines called 'Duratorq'. The 2.0 ltr producing either 130PS or 140PS. Clutch....depends on how you drive your car. Mine is a mk2, done 167k miles and still on the original clutch! Hope, i have cleared some of your queries, if not, drop us another post. P.S. Glad you like your mk3.