Bought this last week. First car with my own money (partly) :) [OC]

Exter SX(O) amt. Please give me tips & tricks for maintenance and care. Also if anyone knows how to increase the mileage, do tell. Right now getting 11-12kmpl in city (ik its too early to judge)

Also leather cover for seats at showroom cost - 11k Will be fitting from outside at 5k. Sounds reasonable?

Thank you for your advice :)