Gunvault also has a Nano 300 with a combo lock that sometimes gets poor reviews due to the cheap combo lock they use.
Sentry also has a small lockbox with cable for the car called the AS-1 Autosafe. But it seems a little too tall for under seat placement. They also have a P005C Compact Safe with cable.
“Show me a young conservative and I'll show you a man without a heart. Show me an old liberal and I'll show you a man without a brain.” - Sir Winston Churchill
“I would remind you that extremism in the defense of liberty is no vice! And let me remind you also that moderation in the pursuit of justice is no virtue!” - Senator Barry Goldwater