1920's Model T? Car

So I started working on a 1920 car. Its loosely based off the Model T so it may look different.

C&C are welcome. One question though is what would be the easiest way to do the tires. As of now they are just solid and smooth but I want actual grooves and such. Thanks.

Are the tires a mesh or a NURBS object? Otherwise I think it looks pretty good so far.

It’s a mesh. Its just the taurus? object.

Andrew Price made a nice tutorial on making car tires. I have used it and it works out excellent. Although its for modern car tires it might be useful for you to see how he approaches it.
http://www.blenderguru.com/how-to-make-a-car-wheel/

its a nice model though