What is the most reliable engine for a Vauxhall Vivaro?

I am trying to decide between the different engine options for the Vauxhall Vivaro. Which one is the most reliable and has the best performance?

In my experience, the 2.0-liter diesel engine is the most reliable and efficient choice for the Vauxhall Vivaro.

I've been driving a Vivaro with the 1.5-liter turbo petrol engine and I haven't had any issues with it. It's also more affordable than the diesel option.

If you want more power and torque, the 2.5-liter diesel engine is a good choice. However, it may not be as fuel efficient as the smaller engines.