Hello, greets and my new purchase

Hello everyone. I've been lurking around here for a while reading technical threads and trying to catalog some info about E46 M3s and S54s. I hope to contribute in the future. I just picked up the reason for doing that research. '06 ZCP, Interlagos Blue, low mileage. I had an E92 335 lease that I had just turned in. It's for sale at the dealer as a CPO. I ran up to the dealer and took a couple pics after I picked up my new ride to compare:



Here in short while when the M3 gets paid off it will become the dedicated weekend blast/track car. And I couldn't leave well enough alone already:

aFe Stage 2 intake
Rogue Engineering underdrive pulleys
stainless brake lines

I've also been outed already as a M car noob since I wasn't storing extra oil in the empty battery compartment yet. Heh.

Would like to hear your thought (pros/cons) on the two cars. How do they compair as daily a daily driver vs. weekend driver, and what do you like better for track duty and why?
Thanks.