Wikipedia Superliner Railcars Superliner (railcar) Wikipedia Superliner Superliner Superliners Superliner Wikipedia average car holds 60 passengers Sleeper cars http://en.wikipedia.org/wiki/Superliner_(railcar) Superliner (railcar) Superliners http://en.wikipedia.org/wiki/Superliner_(railcar) sightseer-lounge car average car holds 60 passengers