Photoshop has long been used by 3D models enthusiasts to retouch 3D renders they have created in other programs. But with the release of Photoshop CS3 Extended it became possible to import 3D models directly into the program for use in ads, brochures and other documents. One interesting use of this capability is in using 3D models of cars in Photoshop to create highly realistic representations of cars that (unlike photos) can be added to a document and manipulated within the program to get the best possible angle and position for your purpose.
Step creat Race Car.
Purchase a 3D car model you would like to use in Photoshop. There are several online sources for such models, such as Dosch or Renderosity. Download the model to your computer.
Open Photoshop. Select "File" and click "Open." Browse to the file you want to add the car to and open it. Go to the Layers panel and select the layer you want just below the car layer you will import.
Select "Layers" in the menu, then click "3D Layers" and "New Layer from 3D File." In the dialog choose the model you downloaded. Select the 3D layer and click "Transform 3D Models." A 3D toolbar will pop up at the top of the interface.
Use the 3D controls (such as the "Move" and "Rotate" controls) to position the car where you want it in the overall scene. You also can go to the "Layers" panel and change its position relative to the other layers by dragging the layer up or down.
Select "File" and click "Save." In the dialog choose the file type you need for your purpose. For example, if the image will displayed online save it as a GIF or JPEG. If you need the image for high-quality printing, save it as a JPEG or PNG.