Hägglunds Sea Crab ROV/seabed truck

[Voltzz]

Came across this small note on a seabed rov variant of the BV 206:

Sea Crab
The Sea Crab D500 is an underwater remotely operated vehicle based on the hull, suspension and running gear of the Bv 206. A prototype has been built powered by a 40 kW electro hydraulic power unit with electrical power being delivered by an umbilical cord.

Source

Further research turned up two photographs from the Hägglunds afv collection showing the vehicle and a sales prospect found in a Masters thesis on a diving service vessel