Bolt pattern???

I have a 92 Lincoln Towncar Signature. I want to put some 16" or 17" rims on her. She has factory suspension/no mods. What is my bolt pattern and what other vehicles have the same. For example: Will newer Mustang 17" or Lincoln LS 17"s fit?

Your bolt attern is 5-114.3 but, be careful when considering wheels from other cars for your Lincoln. A Mustang uses the same bolt pattern but, many wheel that can be used on a Mustang do not have the load capacity for a Towncar. The Lincoln LS wheels use a very high offset and will not fit your car properly