Hi JR,
Thanks for your inquiry. In 2010, my articles focused on using Corel PhotoPaint, in which I covered background removal from an image as mentioned in your question. There are too many options to consider to explain the process fully here, but I can at least discuss various options.
The first method can be done directly in CorelDraw as long as the image is in good shape. It includes importing the image into Corel, using the Bezier tool to create a vector path around the part of the image you want to isolate (in your case, the car itself), and then using the Power Clip tool to place the image inside the vector path you traced using the Bezier tool. The results of this are excellent, but require strong skills using the Bezier tools, and it can be time consuming.
The second method starts in PhotoPaint with the objective of removing the background surrounding the image you want to retain using the various selection tools. Background should end up either solid white or black in most cases. Ultimately, the image itself needs to be encompassed inside a selection marquis and the file saved as a .cpt file. When it is imported into Corel, the background will be transparent even when placed on a color background. Unlike the first method, the outer edges of the image will look pixelized, unless the resolution of the photo is 300PPI at full size.
The third method is similar to the second except that the marquis surrounding the image gets converted to a path and then saved as a Clipping Path. When this is imported into CorelDraw, the background will also disappear, but the edges will be smooth with no pixelization. The latter two require some skill working with selection tools in PhotoPaint.
A fourth method streamlines the selection process used in methods 2 and 3 above, but it is available only in later versions of Corel. Under Image in PhotoPaint is a tool called Cutout Lab. There is a Marker tool that loosely follows the contour of the desired shape, overlapping it slightly, then a fill tool fills in the contour with a solid color. Based on the Marker path, the computer calculates more accurately the outline of the image in a fraction of the time it would take using the selection tools. From there, the methods mentioned in 2 or 3 would take over. This is clearly the quickest option available and pretty accurate if used properly.
I hope this will get you headed in the right direction. It is not really difficult to achieve good results, but it does require some skill sets with various tools in CorelDraw or PhotoPaint. Thanks.