There is a website called
www.compnine.com
If you enter the VIN number of a car into the box, it will COMPLETELY break down the vin and list all the options your car has.
The output that I got was an extremely long list, which appears to be exactly what would be listed on the window sticker when you first bought your car.
Normally this would cost a fee, but they allow you to enter 2 or 3 VINS per day.
I did this for two of my cars then copied the output.
I had NO IDEA what kind of engine I had, or the rear axle ratios but I do now.