02 Audi A4 3.0 Quattro

Wats going on guys... I bought MY CAR about a month ago and I love it. I end up racing random people on the highway and love the way it handles. I've been browsing around the forums and noticed people refer to their cars as B5/6/7... I'm wondering what that is and what MY CAR is. I really want to mod the the look of the car first before I start modding the performance. I was just wondering what you guys thought I should put on MY CAR? I LIVE in NJ but my life is still in NY so dropping or body kits are a definite NEGATIVE. I was thinking black on blue. You know BLACK TAILLIGHTS, Black Tints, BLACK RIMS, Angel Eyes Headlights, and 8000K Xenon HIDs...

Let me know what you guys think.

I'm still curious about what model my car is (B5/6/7?)
oh and I'm pretty sure my car came with stock HIDs, so can I just buy Xenon bulbs or do I still have to get the conversion kit?

Thanks in advanced guys