The rear bumper area

Before we start modeling the rear bumper area, let's take a look at some reference photo's first:

Note how the tail pipes fit in the bumper area

Note the transition from Side Rear to bumper area

We start with a duplicate from the Side Rear object and start modeling from the rear wheel area. Rename the new object to Rear Bumper. Delete all the faces you don't need and move the Rear Bumper slightly to create a seam.

This is what we start with (all unneeded faces deleted)

Start extruding as usual and keep the mesh aligned with the blueprint in side view and rear view:

 
Extruded and aligned with the blueprint from the side..         and from the rear

Next select the points as indicated in the next image. Then switch to Edit Edge mode and start extruding sideways. Please note that the first edges make a seam, so just move them just a little (a few mm), then resume the extruding as usual.

  
Select these points..                              and extrude sideways..

Then we need to add some faces at the top of the bumper. These faces also stick out a bit (also check the reference image).

  
Seen from the rear                                                                          and from the side

Next we need to create a small seam. Select the face as shown in the next image:

Select these faces and extrude them slightly inwards to make a seam

The faces that are at the inside (and are still selected) are no longer needed and can be destroyed. This way you create the seam:

Selected faces can be destroyed

For the details you sometimes need to check the reference images because the blueprint is not detailed enough in some areas. Here is a screenshot of an almost finished Rear Bumper:

The almost finished Rear Bumper

And here's another one. Images say more then a thousand words!

Note the detail at the tail pipe area!

Next, go in Edit Edge mode and extrude the two edges together as shown in the following image:

Select these edges and extrude them upwards

Then switch to Edit Points mode and move the point (vertex) to the adjacent face as shown in the next image:

Move the vertex to join with the adjacent face

Extrude the object until it looks like this (the arrows show points of interest). Note that the pointy shape has an extra set of faces compared to the previous image and also note that there are some extra horizontal edges added to the two extruded faces. Finally select the top left edge and extrude it, to add a small flap and repeat that with the top right edge.

This is what we aim for

Now take a top view and compare your object with the blueprint. You need to align it with the blueprint. Switch to Edit Points mode to make the necessary adjustments. Pay attention to the two flaps you created. See next two images:

Top view before aligning with the blueprint

Top view after aligning with the blueprint

Now let's continue with the rear view. The two flaps are now clearly visible. Take a good look at the reference image at the top of this chapter again. The left flap points straight up, the right flap is bent forwards slightly. This face will is where the license plate will be.

Note the position of the two flaps

The next image shows that the area between the two flaps is open. This gap needs to be closed. We will use the Subdivision tool, which is in the SDS toolbar. Start the Subdivision tool, press and hold the Alt key and close the lower area in the gap with a 3 sided face and close the top part of the gap with a 4 sided face. When done, check the face normal. If it points in the wrong direction, use the Flip tool to change the direction of the face normal.

The gap is open..                                                                         Three sided face added..                              

Gap closed with a 4 sided face.

Finally extrude the edges on the side, until you reach X coordinate 0,00. This closes the rear bumper area.

Rear bumper area finished.

And the next image shows what we have modeled so far!

This is what we have modeled so far!

Save your work before continuing.