How long does your 4.6 take to warm up?

My 96 Gt warms up in about a mile or two and The 03 gt warmed up in about 5 to 6 miles. So not sure what the difference between the two are. The 96 doesn't overheat or nothing. It just warms up quicker.
 
the guage itself is inaccurate. i have a scan gauge in my car and in the morning IIRC the temp gets up to over 160 before the guage goes over the "C" line and slowly comes up towards the center when the temp hits in the mid 180s. keep in mind the guage stays there while the actual temp fluctuates beween 190-215 based on your fan settings