Sorry, mijn Nederlands is niet zo goed

I'm about to buy my very first Volvo, and I'm very excited about it!
I have a question, and I'm sorry if it appears to some of you as a stupid one

I placed my eyes on two C30's. One is a black 1.6 from 2009 and the other one is a grey 1.8 sport edition from 2008. Both have about the same price and milage (100000 km).
I am leaning more toward the 1.8 sport... But does the sport edition require more maintance compared to a normal 1.6? For example, I know that as a rule of thumb the belt needs to be replaced around 210000km... But is this true for both editions?
Any suggestion will be appreciated.
Thanks!