A question: I can do ellipses pretty well, but I don't know what to do when it comes to tilting the front wheels (well any axle of wheels equipped with the Ackerman's principle )

any tips to get it just right, or can I exaggerate it?

Well I think your referring to a camber angle. Not a clue about Ackerman's principle, not going to google it. Well if you can draw ellipses then all you have to do is raise the angle of the line of the axle so that it tilts. Simple. I'll do a diagram if you want one.

lol, sorry if I got technical... the Ackerman's principle allows the a car to steer, so pretty much how can I have the car look like its turning on the right w/o looking funny (Or am I entitled to aggregate it, I know that wheel ellipses can make or break a sketch)? Afterall, the centre of the wheel moves when you turn the wheels left or right

always the unexpected direction .D
try to think of the real car and how its axis would turn (u gotta spilt every axis into 2). the axis of the ellipse is othogonal to that real axis as u know. now u "just" gotta find the proper opening of the ellipse which is experience and a lot of trial and error. mind that eg. in a 3/4 top view the ellipse would be hardly opened. regards

Thanks...I'll try ^.^

I'd just look at reference photos. Search google or flickr, pick images with said wheel tilt, overlay if needed to get the idea, and practice incessantly. You'll pick it up in no time.

Thanks guys. I figured it out, you have to see 'into' the car where all the mechinals are that turn the wheels. Depending on the turn, the center of the wheel moves long the x-axis. Then you make a new vanishing point.