Isometric car example

I know about the car behaviour which works great for top-down cars but does anyone have a tutorial on making an isometric car turn?

<img src="http://www.scirra.com/images/battlefield.jpg" border="0" />

There are 32 frames for each vehicle and I'd like the right frame to show for that particular direction.

<img src="smileys/smiley4.gif" border="0" align="middle" />

I think the idea is the same as in this topic (depending on the arrow, display as specific animation) and might require a little test also on the angle of the current sprite (is angle between X and Y, then display frame A or B or C, etc...)

.Cap?