The fastest inkjet printer on the planet appears to be the newest ColorSpan Mach 12. These are the same HP printheads in the Hewlett-Packard DesignJet 5000. Thus you get the expected quality of a thermal printhead design. The Epson printers can handle media up to 1.5 mm thick. The ColorSpan DisplayMaker Mach 12 can handle media up to 3.175 mm thick, so over twice as thick as any Epson printer.
Color management is on board.
For most other printers you have to print a color swatch and then feed it manually into an X-Rite or GretagMacbeth color measuring tool. The ColorSpan has an auto-read magic eye camera built in. Can read on normal media. Since transparent media is obviously transparent, that you need to either have backed or else do a manual test for backlit media. This means you can create your own ICC color profiles in the comfort of your own office.