Its an interesting topic and using multiple focal points would be helpful in the final pic, especially in getting the perfect blur on the wheels.SlipZtrEmThat's the part that's kind of iffy:
Obviously my example of using multiple cars is too extreme, but using infinite focal points is a huge advantage. Especially as 440 pointed out, they're a bit bigger in the final image. I'm not saying it's wrong, I just wanted to work up some discussion about it
EVO LancerI reckon that so long as its not over-the-top and something that could not possibly be achieved with one pic in photoshop it should be Ok. I wouldn't encourage it, yet I wouldn't disallow it either.