1. Open the picture of your car in one document and create a new document 300 width and 100 height.
2.
Now switch to your second created document, select the Polygonal Marquee
tool and start off like I have done below. I messed around trying to get a perfect badge. Then go to Layer > New Layer.
3. Fill this layer with a color of your choice.
4. After filling the image select Magnetic Lasso tool
and
draw like I did below. Make sure you don't go over the red layer.
5.
Now copy this image and move it into the car image like shown below.
6.
If you want to blend the image then go to the layers pallete as shown below
and change the opacity as shown below:
Now you're done. If you want, you may copy the image, paste it back in and it should look like mine:







More Photoshop: