Bought new Peugeot partner 8 years ago for £15, 000 inc vat ish
value now £3000 Ish
depreciation @ £1500ish per year ish. Tax deductible so in real terms £1200 per year Loss.
or £100 per month.
worth the investment buying new IMO. For a reliable van that has nothing wrong and is guaranteed for a fair few years.
Just as a comparison though:
I bought a Ford Mondeo Estate in 2013 for £2800 with 67k on the clock, it's had the exhaust redone, the camshaft sensor done, a turbo sensor and the power steering pump, all at a total cost of just under a grand.
The car itself is worth around £1500 with 118k on the clock, so stands me at around -£2300, or -£24 a month, including depreciation and repairs. Not only that but it is INSANE on juice - about 70 quid to fill and i get 600 miles out of it on a run, about 520 on short journeys.
I think the buying new thing is a fallacy, especially since they never need nothing doing to them and so you still have unexpected maintenance costs. The depreciation is a lot of lost money, especially if you finance it and instead of eg £15k you actually paid £18k.
I always tell people with cars 5-15 years old who have something go wrong and think it's cheaper to get a newer car - it's NEVER cheaper to get a newer car, it's always cheaper to fix the problem on the car you have.