I have my Micra 2015 SR for 5 years now, just bought it at the end of lease because I really like it. it's 56000km and looks like new.
I do city driving only and in traffic most of the time. So far I only did the oil replacement, no other expense. I will need new tires and new front break next year. I lost one of the heat shield recently, but that's about it.
No rust what so ever, but I did the rust protection at the dealer when I bought the car. I think it's worth it.
View my fuel log 2015 Micra SR automatic: 7.0 L/100 km ... 40.4 mpg (Imp) ... 14.3 km/L ... 33.6 mpg (US) ...