While it was created from the same project, hence the common S-300 designation, different priorities resulted in a design quite different from the other versions. The S-300V system is carried on tracked MT-T transporters, which gives it better cross-country mobility than even the S-300Ps on 8 × 8 wheeled transporters. It is also somewhat more distributed than the S-300P's. For example, while both have mechanically-scanning radar for target acquisition (9S15 "BILL BOARD A"), the battery level 9S32 "GRILL PAN" has an autonomous search ability and SARH delegated to illumination radar on TELARs. The early 30N6 "FLAP LID" on the S-300P handles tracking and illumination, but is not equipped with an autonomous search capability (later upgraded). 9S15 can simultaneously carry out active (3 coordinates) and passive (2 positions) search for targets.