What is the most fuel efficient model of Ford Transit Custom?

I am planning to buy a Ford Transit Custom and I want to know which model has the best fuel efficiency. I will mainly be using it for long distance trips.

I would recommend the Ford Transit Custom with the EcoBlue hybrid engine. It has great fuel efficiency and is perfect for long distance trips.

The Ford Transit Custom with the EcoBoost engine is also a good option for fuel efficiency. It is more suitable for shorter trips and city driving.