Ahmad bhai, as discussed on phone, here is the pic of my girl friend: 
Now, you recommended for scratches on my passo:
- Meguire Scratch X (Foam)
- Meguire Nxt Wax (for light color) as my passo color is sky blue.
On corolla, (Gun Metallic) I assume that I can use scratch X on this color as well.
Now about NXT wax, you told me that light colors and dark colors waxes are different, but is it possible to use a single wax on both the cars (having light and dark color)?