Look at the 3 vehicles with the longest production runs, and with the highest units sold worldwide. Ford model T was first, then the next 2 are the original VW Beetle ( which was still made until this century, not bad for a car designed before WWII in Germany) and the VW Golf/Rabbit ( depending on market) which still has a large number of spare parts available both OEM and aftermarket. Standard joke here is the only part you cannot buy new is the VIN plate, though you can buy a scrapped one.
Noone will say they are perfect vehicles, but they are both simple, easy to run and more importantly value for money. Where else can you get a vehicle that is cheap, reliable and yet which can hold 11 people ( I have seen it) in a 5 seater, along with fishing rods and such.