23mm? Will cut through it like chainsaw through log.

About 2 seconds with a one-inch diameter lance at about 150 PSI if the material can rust (scrapping titanium is particularly hilarious).
-If it gets into the cabin, [i]there's going to be a lot of smoke to deal with[/i].

Main limiting issue irl is that standard rod-sizes limit cutting-rate, [i]but this is the technique used when it comes time to scrap an M1 Abrams[/i].

Practical application: [url=http://sovietoutpost.revdisk.org/index.php/2012/09/09/a-little-about-tank-ramming/]RAMMING ALWAYS WORKS[/url] (once)
-For which, the thicker-skinned MP21-AC is superior, will not get dent or ding when fist goes through bolshivesk Zaruga torso. LBG-22 will get knocked around like small-child wrapped in bubble-wrap.

I'm not sure what picking-up a car or disabled mech and thowing it would do... [i]but I'm sure it would require an unencumbered Frame.[/i]
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Edit: and before I forget, I'm probably going to introduce my character during the transfer of the cargo.