What car do you have? MY04 WRX
What engine is it? EJ205
What mods that may affect fuel? vf34,fuel pump,de-cap inj, 3'tbe, verso, yada yada:
Whats the transmission, Auto/Manual? 5 MT
How many k's do you get to a full tank? 300-350
What fuel do you use? ultimate 98

What car do you have? Mitsubishi Evolution VIII
What engine is it? 4G63T
What mods that may affect fuel? Exhaust, cold air intake, ebc and BOV:
Whats the transmission, Auto/Manual? ^ MT
How many k's do you get to a full tank? 300-350
What fuel do you use? vortex 98

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Black Evo 8

What car do you have? 1991 Subaru Liberty Heritage - RS Conversion
What engine is it? EJ20H Converted to Single Turbo
What mods that may affect fuel? Exhaust, CAI, FMIC, MBC
Whats the transmission, Auto/Manual? 5sp Manual
How many k's do you get to a full tank? 250-350, dependent on whether I'm sitting on boost or not..
What fuel do you use? Ultimate 98

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03 STi @ 280hp/1.3bar

What car do you have? 2009 Toyota Prado GXL
What engine is it? 3000 D4D
What mods that may affect fuel? Roof Racks
Whats the transmission, Auto/Manual? 5sp Auto
How many k's do you get to a full tank? 1750KM
What fuel do you use? Vortex Diesel

What car do you have? WRP10
What engine is it? EJ20T
What mods that may affect fuel? Standard WRP10
Whats the transmission, Auto/Manual? 5sp Man
How many k's do you get to a full tank? usually about 450-500
What fuel do you use? BP Ultimate 98RON

According to Wikipedia though:
"Fuel Consumption Urban: 11L/100 km
Fuel Consumption Extra Urban: 8L/100 km
Fuel Consumption Combined: (ADR 81/01) 10.9L/100 km"

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God gave us feet...so we could work the pedals properly

That wasn't a U-turn! It was two consecutive right hand turns.

What car do you have? MY07 STI
What engine is it? EJ257
What mods that may affect fuel? Exhaust, Intake, Injectors, Fuel Pump, VERSO
Whats the transmission, Auto/Manual? 6 MT
How many k's do you get to a full tank? 450km - 550km
What fuel do you use? Ultimate 98

Best I have ever done was 552km and managed to fill up 54L

What car do you have? MY03 WRX
What engine is it? EJ205
What mods that may affect fuel? CAI, silicone turbo intake, FMIC, 3" TBE, Headers and up pipe, running at 16 PSI
Whats the transmission, Auto/Manual? 5MT
How many k's do you get to a full tank? 450-500 (Driving like a granny)
What fuel do you use? 98

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I'm not here for a long time......I'm here for a good time!

What car do you have? gc8 2000 wrx
What engine is it? EJ205
What mods that may affect fuel? power fc, vf34, 3"tbe, un-egual headers, bosch 044, cai, gd sti tmic, silicon intake, running 20psi
Whats the transmission, Auto/Manual? 5MT
How many k's do you get to a full tank? 400-450
What fuel do you use? vortex 98

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[COLOR="black"][COLOR="black"]UNDR8TD now for sale[/COLOR][/COLOR]
[SIGPIC][/SIGPIC]

What car do you have? MY00 STi
What engine is it? EJ207
What mods that may affect fuel? Exhaust and pod
Whats the transmission, Auto/Manual? 5spd MT
How many k's do you get to a full tank? 340-350km light is on
What fuel do you use? Ultimate 98

Most I've squeeze in the tank was about 54L. Drove with the light on for awhile, got abit scary tho.

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STi Version VI

What car do you have? MY00 WRX
What engine is it? EJ205
What mods that may affect fuel? Exhaust, CAI, silicone turbo inlet, Walbro fuel pump, Unichip
Whats the transmission, Auto/Manual? 5spd MT
How many k's do you get to a full tank? 470-490
What fuel do you use? Ultimate 98

Most km's I have pulled was ~530
Most fuel I have put in ~54L

Generally I find I can drive 30-40km after the fuel light has come on without any worry, although I try to stay off boost etc once it comes on.