hehe it looks good. Especially the bottom side of the part looks like really accurate modelling.
I think it helps a lot that you have the real life 'car' to really model all the seperate parts well in maya. I have seen other lego maya projects, but very few show the actual lego blocks and parts. I'm looking forward to see how it will all fit together and look like when it's more finished.
I guess you texture mapped the 'LEGO' sign on every knob?
Keep it up!