My Dad should sell/trade in his Korean car to buy a...?

Basically, my Dad owns a Korean made 1997 Hyundai Lantra Sportswagon (he owned a white Hyundai Lantra before he bought this car 9 years ago ) and he wants to buy either a $20,990 (Australian dollars) 2005 Ford Focus 2.0 CL or a $25,000 2006 Mitsubishi Lancer LS. In your opinion, which car should he buy and why? Thank you.