Golf gti mk6 average 7 years car, sure have wear and tear problem here and there, if you are lucky enough, maintaining it won't cause any issue provided you allocate few thousand a year for the parts replacements.

Last time when I own it for 2 years, I spent about 1k for the maintenance + upgrades per month, simply because I want to ensure the car at top performance when I need it, especially suspension, tires and brake.

I'm not a Civic fanboy, but I personally feel the Civic 1.5TC 0-100 at 8.2s is underrated, should be faster.