So I waxed the car myself. Thought to show result . 13 year old do not mean is crappy . 

So let’s think for a second .
Car bmw 635d born in 2009.
Engine 300 hp.
Options: all the possible crap
Acceleration 0-60 miles/ hour in 5 seconds.
Fuel 7.5 litres /100 km average ( thats like 40 mpg )
Cost to run: average a bit over a lame Hyundai
Market value - about 10 k for a good one .
Do better I dare you.
That is why I think this car is still worth buying .