What engine you have,what colour,even what accesories you have.Not only is this useful to know but even more useful when you want to buy parts,By ensuirng you buy with your chassis number you should never end up buying a wrong part.

Where can you find all this magical info?Under your bonnet!As in the diagram lift your hood and you will see a plate located either on the firewall,or on the underside of your hood.
(IMG:http://i14.photobucket.com/albums/a319/gmcke03/Chassis2.jpg)
In the above pic the long rectangular plate shows the chassis number,this is the cars unique identity and no other car will have the exact same.

The larger plate contains a mass of info specific to your vehicle.You can see more about that in this diagram and excatly what everything means
(IMG:http://i14.photobucket.com/albums/a319/gmcke03/cautionplatesamplemitsubishi.jpg)
1. complete model number (GH-CT9A SNGFZ)
2. frame (chassis) number (CT9A-1234567)
3. color number (Y01F)
4. trim number (08R)
Trans axle is you gearbox
Engine is your engine number