Daimler Buses at the Bus2Bus show in Berlin: utmost safety, trendsetting touring coaches and innovative services - Daimler Global Media Site - Setra S 531 DT TopClass 500, Exterior, Velour Red Metallic, OM 471 rated at 375 kW/510 hp, displacement 12.8 l, 8-speed Mercedes PowerShift transmission, Active Brake Assist 4, Sideguard Assist, Predictive Powertrain Control, LED Headlamps, length/width/height: 14000/2550/4000 mm, seating: 1/78.