Ironically, it's the old Mercedes Mark 4 and 5 buses that are vastly preferred to the Volvo B10 and th Volgren B12B that replaced them. The Mercs are mostly mechanical, while the Volvo have dammfool computer chips in them. The bloody Volvo speedometer has a little trick whereby the 100km/h speed limiter slowly and progressively drops the limit, until the bus is virtually crawling along, then it stops completely. The instructors don't always remember to tell you that. The solution is fairly simple, you turn everything off, including the ignition, and start up again. Give me the Mercs any day.