I would have thought the clutch will need doing before long at 82k, but other than that it's had all the arms and belts done.
As Trev says, nice car and if you're not doing the miles to recoup the derv models MPG, might be a decent daily.
I had an older model A4 and loved it, albeit it was nt the most dynamic thing in the world. (These are supposed to be much better)
I've looked into a derv, but the budget doesn't allow for a decent model with a bit of oomph and sensible miles on the clock. Nearest I found in my price range was a Mazde 6 120bhp, but that only manages 7mpg more than the A4. When you look at derv being 7p/ltr dearer it works out the same.
Add to that the increased parts and service items, derv does nt always make sense.
If you do fairly low miles, and don't tonk it around, and can look after servicing yourself (even a bit), and petrols are cheaper when you include the initial outlay for the car.
Just check the tax first, although that should 51 plate be ok mate