I've spent a rediculous amount on mine...
(£ GBP)
1000 (540i/6)
400 Tyres
250 Clutch
250 New Lowered springs
150 New front suspension arms + top mounts
150 Front Brakes
150 Rear brakes
150 Radiator + Hoses
140 Replacement salvage exhaust + fittings
100 Oil over 12 months
~100 New lighting + adjuster for MOT
90 Front shocks
70 Rear bushings
70 Replacement Cam sensor when a lead disintegrated
~60 PCV plate + gaskets
~50 Filters etc
~50 Plugs
~50 New plug leads
~50 MOT
45 Aircon recharge
40 Hydraulic fluid
20 Replacement plasticwork under bonnet
Probably around another 50 quid in random fixtures and fittings.
Comes to :
Car: 1000
Random crap: 2485
So repairs have cost me 2.5x the value of the car
Translated for repairs only that's $3700 ish USD or 2774 Euros
It's a lot of money, but thinking about it I do tend to overdo repairs and replace anything I can get at while doing it... currently having a mental battle as to whether to sell her or not as there's an E39 540i/6 coming up for sale in the family.
I'm sure I've missed loads of stuff off this... I'll keep adding as I remember.