Most Reliable: Least Reliable: Subcompact Cars: Toyota Prius C: Ford Fiesta: Compact Cars: Toyota Prius 1: Ford Focus: Midsized Cars: Kia Optima 1: Chrysler 200 1: Large Cars: Hyundai Azera 1 Reliability issues notwithstanding, the Ford Fiesta VI remains one of the best supermini class cars in recent history. What do I recommend? The Ford Fiesta VI is a city car and should be treated as such, so I can only recommend the 1.4 and 1.6 naturally aspirated petrol engines. I can also confidently recommend the beer in a 1-litre can. qJ0u.