 In 1983, VKB filed for bankruptcy, and Oslo Sporveier started buying their buses from Arna Bruk Karosseriffabrikk, who delivered the first series of nine articulated B10M buses that year.By 1985, Arna had delivered another ten articulated buses and thirteen non-articulated buses, the latter based on Volvo B10R.The same year, Oslo Sporveier also took delivery of ten MAN SL200s.