Complex sentence: Unusual vehicles in the fleet include three Ikarus Polaris bodied DAF SB220; these are the remaining examples out of seven that were acquired with the Blue Bus fleet, which accounted for a majority of those imported to the UK.
Split into simpler sentences: Unusual vehicles in the fleet include three Ikarus Polaris bodied DAF SB220s. These are the remaining examples out of seven that were acquired with the Blue Bus fleet, which accounted for a majority of those imported to the UK.