http://www.flickr.com/photos/frenchkheldar/3432145895/in/set-72157616639237964/

Rule number 1: don't forget to remove the rubber hood when you shoot
Apart from that, contrast/definition in the trees is OK, and colors are definitely vibrant.
http://www.flickr.com/photos/frenchkheldar/3432147021/in/set-72157616639237964/

Typical crazy car perspective you get with this lens...

Here comes the flare !

More flare, and I don't think the colors came off that good...

I don't really have a brick wall shot, but the low level of distortion is definitely a big feature of this lens...

Handheld at low shutter speed, so sharpness is not the issue here... But check the halo around the Bank of America tower. Is that expected?
Maybe I should post some higher-resolution pictures though right? What do you guys think? Rest of the pics are here:
http://www.flickr.com/photos/frenchkheldar/sets/72157616639237964/
I will be adding the pics from the N80 with Velvia once I get them...