Service 93 – SBS Transit Volvo B5LH (SG3001R) & Mercedes-Benz Citaro hybrid (SG4004B) Service 93 – SBS Transit Volvo B5LH (SG3001R) & Mercedes-Benz Citaro hybrid (SG4004B) Service 93 – SBS Transit Volvo B5LH (SG3001R) & Mercedes-Benz Citaro hybrid (SG4004B)