Note: This research was done by PlatinumPlayer3 on the Twisted Metal subreddit. Everything here is his research, which I trust is accurate.

I did my own research into special weapon damage for the heck of it.

Note: All DMG is approximate.

In order of most damaging to least damaging:

Minion (Flamethrower): 120

Minion (Fireballs): 75

Crazy 8 (Maximum Charged DMG): 75

Outlaw (With All 10 Missiles): 55

Crazy 8 (Maximum Non-Charged DMG): 50

Darkside (T-Slide Bonus & Wall Ram Bonus): 50

WartHog: 50

Shadow (Turret): 46

ManSlaughter: 43

Sweet Tooth: 43

Outlaw: 43

Mr. Grimm: 43

Axel (Spike Tires): 40

Darkside (T-Slide Bonus): 40

Roadkill (Charged): 40

Crazy 8 (Realistic Charged Damage Output): 38

Darkside (Wall Ram Bonus): 35

Roadkill: 35

Crazy 8 (Realistic Non-Charged Damage Output): 34

Spectre: 30

Yellow Jacket (Turbo Ram): 28

Shadow: 25

Junkyard Dog: 25

Darkside: 25

Brimstone: 23

Yellow Jacket (Non-Turbo Ram): 20

Axel: 13

Yellow Jacket (Spike Projectile): 9

My thoughts:

-Brimstone's special is cool but it simply sucks. That car as a whole sucks.

-If Axel didn't have that alt special he'd be awful.

-Shadow's Turret is a much more useful special, just like Axel's alt.

-Spectre's special is ranked the worst by the stat screen (5/10) when YJ, JYD, and Brimstone all don't have a more damaging special yet they're all 6/10..