Both cars were built in 1972 and are currently in active captive service. Some of the mechanical details include: 

• Cubic Capacity     6200 CF
• GRL                             262,000
• Leight Weights     72,000
• Extreme  Length  55' 02"
• Extreme Height    16' 8"
• Extreme Width     10' 8"
• Inside Length          50' 6"
• Inside Height         12' 11"
• Inside Width           9' 6"
• End Door Height  10' 8"
• End Door Width    9' 10"