I've owned a KIA Spectra for past 10 years, Civic FD for past 8 years and Hilux since last year. I had rented a KIA Optima K5 (the cheapest budget car at Alamo Anaheim) on my vacation in USA in 2012. If you ask me about reliability of parts, Japanese win hands down. Korean cars despite their said tremendous improvements over the years simply can't match the Japs. You need to own these cars to know. By just reading specs and short test drive around taman won't help much. Get the Yaris Sedan (Vios)!