This may get depressing. Hahaha Just looking for mods not routine maintenance because for some that list could go on for days. Post up the most recent picture of your car at the end.
I paid: $12,500 for the car in 2005 it had 45k miles on it.
1.19" Huff reps, $1200 (new to the game and totally stupid)
2. 17" AMG Monoblocks, $500
3. 18" A8 Sewer caps/ Pie plates, $300 (I'm getting smarter as I learn more haha)
4. 18" MAE crown jewels, $900 (really didn't pay for these, I sold the A8 wheels for the same price)
Used Koni coilovers: $500
Mason Tech airride and management: $3200
Techtonics Tuning TP/DP: $300
Magnaflow exhaust: $165
Vibrant resonator: $70
DDM HIDs: $75
Yellow Highbeams: $8
License plate LEDs: $8
Depo headlights: $200
S4 skirts: $100
S4 door sills: $100
M3 lip spoiler: $200 (thats with having it painted. I actually sold it a long time ago)
Used front mount: $80 (sold this a long time ago)
Complete S4 swap: $700 (can't really remember the exact amount because I pieced it together over a year)
Black sport seats: $250
Black cloth sport seats: $0 (traded my leatherettes for them)
Future project: 5 speed swap
I've got $590 in that so far with most parts being purchased already.
So I've owned the car since 2005, started modding it in 2007. So in the last 4.5 years I've spent: $9,526 dollars in upgrades (and downgrades [>_<]) alone. This isn't including all the misc. maintenance crap either, I don't even think I could add all that up!