Jap vans require less maintanence and their parts are cheap , but, their initial cost is almost x2 or x3 that of a eurovan , when it comes to 2nd hand purchases, their depreciation is normally 6k to 9 k , compared to eurovans which have a average of 3k to 4k
Renault parts are the cheapest among the euro van types, but they just arent built to last.
opel parts are very expensive, as the engine components are larger than the rest, most powerful among the eurovans , but when it reaches the 100k milage , good luck . you can buy a new 2nd hand van from the repair cost thats gona incurr over the years.
vw parts are cheaper than opel and quite lasting , but , the way they construct the vehicle is absurdly complicated and u better have a workshop who knows what they are doing , most workshop dont know and they make a mess out of it , i.e problems arises after servicing etc, dont mess with their electrical system if you dont know what you;re doing.
peugeot dont even consider, most number of breakdowns compared to the other brands
citroen , i dont know much abt it , but yeah , its pretty similar to peugeot , except for maybe their engine .
Fiat parts are DAMN expensive , but they have the nicest comfort among all the vans , and yeah , you have to wait for their spare parts. and they cost a bomb , but im pretty sure oem parts can be found in the market now .
jap vans generally have lesser problems , but they cost a whole lot more . at the start.