AZL has partnered with Andy Hart of Z-Panzer to offer M977 (cargo) and M978 (tanker) trucks. The first release of these sold out immediately. The follow-up release has the RTTX cars in yellow with the sand colored M9777 and M978 trucks. The trucks are highly detailed. Two trailer hitches are included with the car. This is a limited edition release. Six single cars are available.