t = var('t')
v = [cos(c*pi*t) for c in sxrange(1,2,.2)]
animate(v)

def f(x):
    P1= polygon([(x+3,3.8), (x+3,3), (x+1,3), (x+1,3.8)])
    P2= polygon([(x+3.5,3.4),(x+3.5,3), (x+0.5,3), (x+0.5,3.4)])
    P3= circle((x+1,3), 0.2, rgbcolor='yellow', fill=True)
    P4= circle((x+3,3), 0.2, rgbcolor='yellow', fill=True)
    P5= circle((x+1,3), 0.1, rgbcolor='orange', fill=True)
    P6= circle((x+3,3), 0.1, rgbcolor='orange', fill=True, xmin=0, xmax=6)
    return P1+P2+P3+P4+P5+P6

v = [f(x) for x in [0,0.3,..,2]]
a = animate(v)

a

a.save('car.gif')
smc.file('car.gif')