I remember in that Discord argument, I linked to a
post in a GameSpot thread referring to a 0:16 timestamp in a video where Scott Campbell claimed that Twisted Metal 2012 started out with Warhawk's game engine before being rebuilt. However, the video in question wasn't embedded into nor linked from the aforementioned post. I wasn't able to quickly find it and didn't see any value in further researching it at the time.
Decided to try looking into it again after seeing this thread and stumbled upon these:
The relevant YouTube video referenced in those posts no longer exists, but
its page was cached by the Wayback Machine. It was first posted on June 16, 2010. Unfortunately, the Wayback Machine doesn't seem to cache YouTube's actual videos.
Thankfully, a copy of that video was posted to Dailymotion by a user (advertiser?) called Hintchallenge:
Here's a transcript of the start of the video...
Quote:MACHINIMA.COM
INSIDE GAMING PLUS
E3 2010
Scott Campbell
Co-Founder Twisted Metal
"Well Twisted Metal, we like to think of it as the ultimate car combat... you know, vehicle combat game."
(flash)
"Umm, we started with, uh, you know, the Warhawk engine and then we completely rebuilt it, uh, just, because car combat's a different, obviously a different genre than, uh, the Warhawk game. So umm, there's tons of new tech in there, it's allowed us, you know, we do a lot of paging, technical paging, geometry paging. Uh, it's a very high-paced game, so we've gotta be able to do all those things really quick and still make it look good. Umm, we've been able to bring a level of life, uh, back with interactivity, uh, there's traffic, there's pedestrians that you can mow down. So it's just, kind of a more rich environment and uh, it's been a, been a fun but very challenging, uh, process."
(flash)
...