Wasn't the original argument for using the initials to avoid cramming up the name field?
And antp does have a point, SSV is an official acronym. And I don't personally know anyone who drives an SSV so I couldn't tell you what they are called by officers. I certainly have never driven one. But I've learned that car brochures can be more trustworthy than some cops. I have a good friend whose been on since about '79. He fondly remembers the Malibu 9C1's of the 1980's. Only thing is that although Malibu 9C1's were used by us back in the day, he actually refers to the Caprices
However, if you wish to give them the full name then I'll support you with it. I'll rename the Tahoe and Mustang equivalents too just so there can be consistency.
Although the acronyms are perhaps more well-known than the actual full name, I think it might prove to be more informative to spell it out.
Was that along the lines of your reasoning Neptune?