| Vehicle Identity | Engine | Engine hp & Displacement | Vehicle Model Year | Odometer Reading (miles) | Test Weights (lb) |
| CRC-34 | DDC Series 60 | 500 hp & 12.7 liters | 2004 | 19,094 | 30,000, 56,000 and 66,000 |
| CRC-38 | Cummins ISX | 530 hp & 15 liters | 2004 | 2829 | 30,000, 56,000 and 66,000 |
| CRC-39 | Cummins ISX | 530 hp & 15 liters | 2004 | 45 | 56,000 |
| CRC-40 | DDC Series 60 | 500 hp & 14 liters | 2004 | 8916 | 56,000 |
| CRC-63 | Cat 3406 E | 475 hp & 15.1 liters | 2005 | 2731 | 56,000 |