Value of 200q20v?

[Taka Mizutani]

Hi listers, I was wondering if any of you could provide some insight
into how much our cars are worth now.

I'm contemplating selling my car, wondering what it's worth:

'91 Audi 200 quattro 20v
Black exterior, black interior (heated sport seats)
156k miles
Lehmann chipset, 2.5 bar PT, stock K24 turbo, EM, MAF and injectors
New plug wires, plugs, cap, rotor, MTFS, ECU temp sensor, main
radiator and aux. radiator
Timing belt at 135k
Climate control works fine- no issues, cold A/C
Stromung Gen III turbo-back 3" SS exhaust
H&R springs, Bilstein sport shocks
Porsche 996 calipers in front, SS brake lines all around
V8 taillights, Bosch Euro-spec 200 headlamps (relayed harness), clear
corners, side markers and indicators
Llumar metallic grey tint- 35% sides, 20% rear
Oettinger RE 17x8 wheels, 255/40R17 Sumitomo HTR-ZII tires, exc. tread
Sony ES headunit, a/d/s amp, Boston Acoustics component speakers,
Monster Cable wiring throughout

If I don't get the C5 Vette, I'm getting either a B5 S4 or A6 2.7T or a WRX.

Taka