Copy objects (to objects or just plain copy). The geo option will keep the geometry and its matrix referenced, otherwise only the polygons of the object will be referenced. If align is specified, the template object will be considered a curve and a coordinate frame will be built for each point copied and the objects will align themselves to the curve.

copy <object>
copy <object> <templatePoints> [<align> <geo>]

geo write <somelobj>

Below is the source!

add grid 0 0 1 4
extrude 0 0 0 10
name shape
compute

begin draw
-10 -10 -10
-10 0 0
30 0 0
50 0 0
70 40 0 
100 130 30
60 65 60
30 30 70
0 0 40
0 50 30
-50 60 10
-70 70 0
-100 100 -30
-60 120 0
-40 50 -60
-20 30 -120
40 -50 -60
end
bezier 30
name path

copy shape path align

add geo
name car

path car path