Last thing left from ended mk1 project. Ex Mk4 auto not sure but 80-100k. wire loom from dash forward.open to offers around $300....

Hi Guys,
I am looking at used passat wagons in 20k range. I can get either petrol or diesel with 80-100k kms on it. I would like to drive this car for another at least 80-100k kms, so upto 200k. Which one should I pick, petrol or diesel? Pros and cons? Will diesel be too expensive to maintain...