I don't think this has been mentioned here before, but I noticed this comment
on FUNi's blog posted by their official rep, Rojas:
We do have the OVAs Vandread Turbulence (Gekitouhen) & Integral (Taidouhen) but I donít have any information on how and when they will be released.
Both OVAs are recap specials featuring new footage. Vandread Integral
is a recap special of Vandread
(first season) and Vandread Turbulence
is a recap special of Vandread the Second Stage
(second season). Geneon did not release the two OVAs.
Better late than never, I guess.