What is the best engine size for Ford Transit Custom?

I am planning on purchasing a Ford Transit Custom and I am wondering what the best engine size would be for my needs. I will be using it for commercial purposes and I want to make sure I have enough power without sacrificing fuel efficiency. What engine size would you recommend?

In my personal experience, I have found that the 2.0L EcoBlue diesel engine is the best option for the Ford Transit Custom. It offers a good balance of power and fuel efficiency.

I have been using the 2.2L TDCi diesel engine for my Ford Transit Custom and it has been great so far. It provides enough power for my needs and I haven't had any issues with fuel efficiency.

I would recommend going for the 3.5L EcoBoost gasoline engine for the Ford Transit Custom. It may not be as fuel efficient as the diesel options, but it offers a lot more power and towing capability.