I don't have either, so from an unbiased viewpoint. I like the 06s. Seems more futuristic, Reminds me of a robot or something. Its the night-rider of the 21st century. Now it just needs to talk to its owners. Hah!

 

the 06 Z is my very first car.

 

If any 06' owner wants or wouldnt mind 03' headlights, Ill swap mine and send $300 your way...

 

i really like the 06 headlights... i got 05 headlights and willing to trade for a reasonable price!!!

pm