personally i prefer to lease cars.
as long as you don’t see problems arising on the monthly payment commitments over 2 to 3 years then its a good option as you have nothing really to worry about due to the vehicle being brand new. by that i mean repairs, things going wrong etc. you can also have things like services included in the cost. but in general its a low deposit and monthly payments, end of.
down side for this "with a van", is…
i would see the miles on the clock being higher. so theres options for this which are really additional costs incurred. over clocking your miles means small fines of something like 6p+ per mile over max allocated.
Your vehicle is also inspected on it being picked back up. you are allowed "some" general signs of wear, but any damage at all is charged back to you for repair. this vehicle "your" not the main driver so expect it to get dings and bumps left and right, regardless to what the driver tells you "he has been careful"
a, its not his ar$e being fines at end of lease
b, will he still be with you when lease is up?
c, reality is , its a works vehicle and sh1t happens!
buying maybe a better option if the vans a run-around for the employee. as long as its a good runner. you can stick some used alloy wheels on it and wrap it. appearance will be near to new and your not tied to anything accept the outlay.
downside is lots of ongoing costs can arise. things break, services, tax, tyres etc etc im sure you get the picture.