Anyone know what these wheels are from?

I wanted to know if anyone knows what my rear wheels are?
The PO said they are police wheels, but I dont think they are.
Someone else said they are off a Lil Red Express Truck.
They are 15" large bolt pattern and 8-1/4" total width and measure 4-1/2" from where they touch the hub to the back edge of the wheel.
They have 255/60R15 tires on them.
I like the way the cars sits with this wheel/tire combo.
Is it possible to get a 15" Rallye wheel in that size or something close that will take that tire and offer the same clearances?

On the front of the car are 14" Rallye wheels 6-1/2" total width and a 4" backspace. The front tires are 245/60R14

Click this link. This tune always makes me think about long drives and the stuff you think about when your alone with your thoughts...

[ame="https://www.youtube.com/watch?v=ONkiLR5Ehys"]Foo Fighters - Wheels - YouTube[/ame]