1971 Porsche 917/10 
Original model takes from Can-Am V5.5(rFactor MOD)
Edit and convert to GTAIV by cjisntgay

Features:
HQ car model
HQ mud texture
multiple liveries available(amount of 4)
----------------------------------------------------
Known problems:
Niko can only enter the cockpit at right side,if anyone get any other problem with is mod, plz leave some feedback at:gta4-mods.com
--------------------------------
How to install:
First BACKUP all the stuff you want to edit or replace!
Then using SparkIV or OpenIV to open the archive "Grand Theft Auto IV\pc\models\cdimages\vehicles.img" and replace any 2 door cars you like(example:comet)
Lastly browse Grand Theft Auto IV/common/data and open the following files with any notepad, replace the following lines for the car you replace.

HANDLING.DAT:
COMET 743.0 4.5 85 0.0 0.0 -0.53 0.0 4 0.315 1.1 360.0 0.4 0.66 0.7 35.0 1.70 2.15 15.5 0.12 0.48 3.0 2.5 2.5 0.10 -0.14 0.0 0.5 0.55 1.0 0.55 0.5 0.0 1600000 40440010 1 1
--------------------------
VEHICLES.IDE:
comet,		comet,		car,		COMET,		COMET,		VEH@LOW,	VEH@LOW_CONV,			1,	0,		0.2600,	0.2600,		0,	5,	1.0	,0,	noboot+ext_conv+livery
-------------------------
CARCOLS.DAT:(at car3 section)
comet,	     0,0,0,
--------------------------
Done, start the game and play hard!^^