Kind of hated Raven, tbh.
Much prefer Mortimer as the driver of Shadow, and I don't see her as a capable vigilante. Keep in mind a lot of those "Twisted Metal: Lost" story continuations were lazily conceived and I do not consider them canon except maybe Black's because that one at least gives Black the backstory he didn't have in TMB. There are also some inconsistencies in those TML bios that contradict stuff from TMB.
The TM Lost bio for Raven basically describes her as someone who is exactly like Mortimer from TM2 except with voodoo dolls and instead of going after Calypso, she's going after all the freaks and killers of Midtown who prey on the innocent.
Lets get one thing straight with Raven. Her magic came from Calypso, it's not innate. Calypso made the magic voodoo dolls, so Raven isn't really a magic witch, she got lucky and stumbled upon some magic, and even says in TMB that she'd only ever use those dolls again if she ever runs into her rotten parents. *which indicates killing isn't really her thing. She doesn't sound like she could take on Midtown's worst.
But in TML she's a vigilante like The Punisher?
Get out of town! (or midtown!)
What Raven was in TMB was the young, trendy girl with an attitude and shitty parents....... hmmm who else was like that? ...........the driver of Grasshopper, Krista Sparks!
And that's my rant on Raven.
*Furthermore, it's possible that the presence of Raven's voodoo dolls in Calypso's trophy case in TM2012 is an indication she dead