Buy a 20-year-old car?

Hello dear community, I’m thinking of buying a 20-year-old Mitsubishi Colt (built in 2005, running 120 000, automatic) to save money. I’ve visited it and tested it. I don’t know about cars, but I’ve taken photos of the engine compartment. Can you please tell me if it looks up to its age, and if it’s worth 4000 euros, including warranty?