I am currently driving a Mitsu EVO GTA, it is not your normal daily car but it can be use as one. Maintenance wise, is not cheap. For starters, to maintain a smooth ride and superior performance, u need to use a minimum of RON 98, but in Malaysia, u can only use RON 97...that is good enough i guess...
In addition, your routine maintenance of 'minyak hitam, oil filer, etc...not cheap either, if you go for MOTUL, it will set u back for at least rm200-rm250 per botol, oil filter between rm50-rm80 (depending on the brand), tyres (goodyear, michelin, toyo, etc) whole set can cost u between rm2500 to rm3500..
periodic maintenance such as timing belt, water pump, tensioners, bearings, bushes, shock absrobers, rotors, break pads, etc...
but one thing that i can assure u that driving an evo is a tremendous experience...once u driven one, u will not feel the same again...unless u upgrade to a ferrari, lambo or bugatti...