I've had my GTT for a year next month. kept it stock all this while, the only costs I have outlayed is in replacing an O2 sensor plus ur normal 5000k services which is oil, filter. I've driven more than 30,000ks over the past year in it and had no problems at all whatsoever *touch wood* I guess all it comes down to is age and condition. newer car less things break if maintained regularly. older car would have more wear and tear, replacing parts can be a pain and that is where most of the costs would be incurred. I don't see any difference in maintainece costs compared to a lancer except with turbo cars u will need to do oil changes more regularly.