What is the best engine configuration for a Ford Focus?

I am looking to purchase a Ford Focus, but I don't know which engine configuration is the most suitable. I want good fuel efficiency and power, but also a reliable engine. Can you provide any recommendations?

I would recommend the EcoBoost engine for a good balance of performance and fuel efficiency. It also has a great reliability track record. I have it in my own Ford Focus and haven't had any issues so far.

The diesel engine might be a better choice for you if you prioritize fuel efficiency over power. However, keep in mind that diesel engines require more maintenance and are more expensive to repair.

If you're truly seeking the best power and performance, then the ST trim with the 2.3L Turbocharged engine is the way to go. Just be aware that it comes at a higher cost and lower fuel efficiency.