What should I consider when purchasing a used Nissan Patrol?

I'm in the market for a used Nissan Patrol and I want to make sure I'm making a smart purchase. What are some important factors to keep in mind before buying a used Nissan Patrol?

First and foremost, do your research on the model year and engine type to ensure you're getting a reliable vehicle. Also, be sure to check for any past accidents or major repairs.