Aaron, our VIN Project supports your assertion that the CHP ordered more than the reported 150 SSPs in 1993. That year, SSPs were ordered by the CHP under two DSO numbers: 72-0009; and 72-0202. If we use the information in the VIN Project and only look at SSPs with the DSOs confirmed, we can determine the highest and lowest VINs in each batch, as follows:
DSO 72-0009
. . 112014 (highest VIN so far)
. - 111876 (lowest VIN so far)
. . . .139 units *
DSO 72-0202
. . 189153 (highest VIN so far)
. - 189093 (lowest VIN so far)
. . . . 61 units *
And if you look at the 1993 page, you will see that we have many other CHP Mustangs confirmed via smog reports to extend the range of VINs even further. So you are correct, Aaron.
* - When you count the VINs and include the lower and higher cars each time, the totals are bumped 1 more than the math would indicate.