Step 1:
Prefold in half over both lines.

Step 6:
Make sharper folding lines, use the prefolded squares pattern as guidance. The numbers indicate the amount of squares.

Step 5:
Repeat steps 2 to 4 in the other direction.

Step 2:
Fold the edges to the centerline

Step 4:
Fold the edges to the centerline, then unfold the model.

Step 3:
Fold the edges to the centerline.

Step 10:
Repeat step 8 and 9 over these lines.

Step 8:
Use the prefolded lines as help. The red rectangle will be the steering hut.

Step 9:
Press flat, see arrows.

Step 7:
Make sharper folding lines.

Step 16:
Make sharper folding lines

Step 15:
Fold over these two lines

Step 12:
Fold over these two lines.

Step 11:
Repeat step 8 and 9 two more times

Step 14:
Fold the white edge downwards over the prefolded red line. Fold the two red edges sidewards, use tape or glue

Step 13:
Fold over the prefolded lines.

Step 18:
Fold the corner inwards, do the same on the other side.

Step 17:
Make the same fold on the other side, then glue or tape the edges together.