What are the differences between the Audi A6 petrol and diesel engines?

I am considering purchasing an Audi A6 and am unsure whether to go for a petrol or diesel engine. What are the main differences between the two options in terms of performance, fuel efficiency, and maintenance? Thank you.

The petrol engine offers better acceleration and a smoother drive, while the diesel engine has more torque and is more fuel-efficient in long-distance driving. Overall, it depends on your driving needs and preferences, but both options are reliable and well-engineered.

In terms of maintenance, the diesel engine may require more frequent oil changes and has a more complex emissions system. However, it may also have a longer lifespan and can provide cost savings in the long run. On the other hand, the petrol engine is simpler and therefore easier and cheaper to maintain.