The value of your Town Car will be influenced by
Trim level, miles and condition (Yeah, I realize it was totaled. But before it was total market loss.)
The Signature trim level was the entry level Town Car
The miles are likely very low
Things that matter little are color and most of the options. Like the vinyl roof will not have any influence on market value.
Sources to look at sold values would be eBay, Hemmings and other sources.
Looking at eBay for sold Town Car there are:
2008 Town Car Signature Limited with 169,000 miles sold for $5000 on May 4 - Buy it Now format
2009 Town Car Signature Limited with 44,000 miles sold for $16,500 on May 5 - auction format
2007 Town Car Signature Limited with 133,000 miles sold for < $6500 on April 29 - best offer format
2007 Town Car Signature Limited with 54,000 miles sold for <$12,800 on April 26 - best offer format
There are 8 more examples of third gen Town Car that sold on eBay.
The above data can be used with adjustments for trim level, miles and year.
Looking at other sources may give a clearer picture of what the market pays for your kind of Town Car,
Good luck
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