What is the best engine type for a Ford Transit Custom?

I am planning to buy a Ford Transit Custom, but I am not sure which engine type is the best. I want a powerful yet efficient engine. Can someone help me decide?

I have been using a Ford Transit Custom for my business for several years now and I would highly recommend the EcoBlue diesel engine. It is reliable, fuel-efficient, and has enough power for any job.

I have heard good things about the EcoBoost gasoline engine. It has a smaller displacement but still offers great performance. I would go for this if you prioritize power over fuel efficiency.