From the Bofors BUSTER thread. Second image shows the system fitted to a CV90 chassis for those wondering.
Translation of first image (Bofors 350 år, 1996):
BUSTER is the working name of the next generation anti-tank missile system, which Bofors, on behalf of FMV, have studied since 1987. The study work shall clarify what possibilities exist in fifteen years' time to increase performance, so that sufficient effect is obtained against future tanks.
BUSTER is a system which uses a high-velocity missile. Effect is achieved through a dart shaped warhead made of heavy metal which penetrates tank armor through high kinetic energy. Kinetic energy means great speed in combination with high weight on the penetrator. High demands on both penetration ability and range mean that the missile must have a velocity in the trajectory of more than 2000 meters per second.
In the years 1990-1992, feasibility studies were carried out to find out the conditions for achieving sufficient speed. Ongoing studies are focused on the beam riding link to the missile as well as on questions concerning the missile's control and aerodynamics. In addition, various platform arrangements on ground vehicles and helicopters are studied.