Welcome to Stangnet and congrats on having 3 fastbacks.
Here's a link to a good Mustang Decoder site.
http://www.mustangdecoder.com
As the previous poster said, it's not a GTA car. Here's how your Mustang decodes:
<TABLE cellSpacing=0 width=560 align=center border=3><TBODY><TR><TH align=middle colSpan=3>
Warranty Number: 7T02AXXXXXX
</TH></TR><TR><TH align=right width=90>Year: <TD align=left width=70>7 <TD align=left width=400>1967
</TD><TR><TH align=right width=90>Plant: <TD align=left width=70>T <TD align=left width=400>Metuchen, NJ
</TD><TR><TH align=right width=90>Body Series: <TD align=left width=70>02 <TD align=left width=400>2+2 Fastback
</TD><TR><TH align=right width=90>Engine: <TD align=left width=70>A <TD align=left width=400>289 4v V8
</TD><TR><TH align=right width=90>Unit: <TD align=left width=70>XXXXXX <TD align=left width=400>XXXXXX
</TD></TR></TBODY></TABLE>
<!--- miscellaneous vehicle data table --------------------------------><TABLE cellSpacing=0 width=560 align=center border=3><TBODY><TR><TH align=middle colSpan=3>
Miscellaneous Vehicle Data
</TH></TR><TR><TH align=right width=90>Body: <TD align=left width=70>63A <TD align=left width=400>2+2 Fastback, Standard Interior
</TD><TR><TH align=right width=90>Color: <TD align=left width=70>I <TD align=left width=400>Lime Gold Metallic
</TD><TR><TH align=right width=90>Trim: <TD align=left width=70>2G <TD align=left width=400>Lt. Ivy Gold Crinkle Vinyl and Ivy Gold Crinkle Vinyl, Standard Interior
</TD><TR><TH align=right width=90>Date: <TD align=left width=70>11L <TD align=left width=400>November 11, 1966
</TD><TR><TH align=right width=90>D.S.O: <TD align=left width=70>13 <TD align=left width=400>New York
</TD><TR><TH align=right width=90>Axle: <TD align=left width=70>1 <TD align=left width=400>3.00:1, Conventional
</TD><TR><TH align=right width=90>Trans: <TD align=left width=70>W <TD align=left width=400>C4 Automatic
</TD></TR></TBODY></TABLE>