Putting Seats in
Alright, you can now start on the seats. The seats in the Fiat are pretty simple and not hard to model. You will start with the front seats and then go on to the back passenger seats.
Hide everything except one of the inner shell halves. In the top viewport, create a box and tweak it until you have something like the shape shown below. Delete the polys at the bottom of the box so that the seat is open underneath.
Add a Meshsmooth to the box with 1 iteration. To create the ridges on top of the seat cushion, all you have to do is add an "Edit Mesh" on top of the Meshsmooth and then in poly mode, select each row of polys on top of the seat and extrude them by a small amount (say about 0.1 or 0.2) then add another Meshsmooth with 1 iteration. Note: you have to extrude the rows of polys one by one or you will have one big lump instead of a number of ridges. The finished seat cushion should look like this (The seatback is pretty much done the same way.):
The next thing to do is create the supports for the chair which are simply cylinders that have been extruded a number of times until they are the right shape. This is the finished seat, on the left.
Now onto the back seat. The back seat can be done in half and then mirrored. This is done the same way as the front seat so I will not repeat the method. You should be able to create something like this (you can weld the two halves of the back seat together and also clone the front seat and position the two on either side.):
Interior Accessories
Hide everything but the inner shell halves. The first accessory to create is the gear lever which is very simple in the Fiat 500. Just create the spline shown left and lathe it to create a simple gear lever. Position it in the right place.
Next thing to tackle is the steering wheel. In a new file, create a cylinder in the left viewport with 4 height segments, 1 cap segment and 18 sides. Name the cylinder "Steering Wheel." On one end, start doing some bevels and extrudes until you have something like the image below. Chamfer the edges in red by 0.2.
Now create a torus with 54 segments a 4 sides. Leave everything else as it is. This is going to be the actual wheel. Now position in in front of the cylinder you created earlier like seen on the left. Select the cylinder and then click the "Attach" button and then click on the torus to make them one object. Now on the underside of the torus, the side closer to the cylinder, select 27 alternating vertices, i.e. select a vertex and then skip one then select the next and then skip one and select the next and so on all around the torus. With all those selected, move them backwards a little so the the underside of the torus becomes jagged as shown below.
Delete half of the torus and cylinder and mirror a reference to the other side. Then delete the polys shown. Delete the poly on the wheel itself that is directly opposite the middle poly you just deleted on the cylinder.
Select the middle top edge in the hole you just created on the cylinder and shift+drag it out to the wheel and weld the vertices to the wheel.
Now repeat that until you have made a solid arm going from the cylinder to the wheel as shown right.
Select the middle top edge in the hole you just created on the cylinder and shift+drag it out to the wheel and weld the vertices to the wheel.
Select the edges shown below in red and chamfer them by 0.3. Weld the two halves together. Add a Meshsmooth if you haven't already done so. 1 iteration should be sufficient but that's up to you.
Next Page: More Interior Accessories.