I'm surprised everyone is saying they are so reliable. The only one I've had the pleasure to try probably malfunctioned 1 in 5 rounds. Albeit that was a few years back. Have they improved?
And for a "trunk gun" wouldn't one be better off with an old S&W revolver, or even a Rock Island revolver?
I've only ever had a hi-point fail with cheap rounds. If you buy a cheap gun, feed it good ammo. It made a difference.