Spotted then Killed: Black GS300/400? w/ Angel Eyes

[OnURleft]

So I was cruising down 285 towards the Varsity by P'tree Rd. when an all blacked out GS300 or 400 (De badged) comes up by me which looked very clean...even had angel eyes which made me laugh. It looked like he was rolling on ASA AR1 wheels (not black) with a big lip and had a gorgious rear lip and exhaust. Everything looked good except all the stickers on the back windows I.M.O. Anywho we started messing around and he was infront of me before the Ashford Dunwoody exit and the highway suddenly opened up. I'm almost positive he didn't floor it right away but we both got on it at about 85 (I left it in 5th) and I stayed glued to him until about 105 when I saw black smoke ploom out more..He didn't really pull hard but by 140 he had 3 or 4 lengths on me...I should of fucking downshifted, it felt slow and I had passengers...oh well. Anyway I thought he was going to the Varsity that night but he went 400N. Anyone know who this is? I'm curious to find out.