What a neat little machine! Reminds me a lot of its direct competitor, which I had years ago - the mighty Dell 316LT:
If I remember correctly, it had a 40 MB hard drive, a battery (that never worked when I had it), monochrome DSTN VGA which did a weird reverse colour mode when the screen was primarily black (i.e. at the DOS prompt), and a single half-length 8-bit ISA slot. Now I kind of regret selling it, although I thought I was doing great when I got $30 for it around 1999.
Come to think of it that expandable laptop form factor never went away, it just became detachable in modern docking stations. I still use the direct descendant of my old 316LT as my modern~ish workstation:
It's a great little 12" notebook, but thanks to the dock it runs a second hard drive, 6 channel PCI sound card & MIDI interface, external DVD, parallel port zip & USB floppy (actually a Dell internal floppy but I ran out of drive bays, luckily it has a USB port!) Not exactly 'vintage' though, unless you call 2007 vintage.