Which Ford Transit Custom model is the most fuel efficient?

I'm considering purchasing a Ford Transit Custom and I want to make sure I choose the most fuel efficient option. Can anyone recommend which model I should go for?

In my experience, the Ford Transit Custom 2.0 EcoBlue TDCi 130PS with Start/Stop is the most fuel efficient option. I've been using it for my business for the past few years and it has significantly reduced my fuel costs.

I would also recommend the 2.0 EcoBlue TDCi 130PS model. It has great fuel efficiency and the added feature of Start/Stop makes a noticeable difference in fuel consumption.