Energy consumption from the transport section, in many developing countries, has not been dealt with the same intensity than that of developed countries. Due to the rapidly expanding mobile populations in the developing world, the issue of low carbon development and transport needs to be urgently addressed. In this paper, two cars using different routes have been employed. Vehicle speed and engine speed along with other data have been extracted from the two cars using an on-board diagnostic reader and a data acquisition software installed in a portable PC. Data has been saved and used to establish driving cycles for Aleppo city in SYRIA and to estimate the energy consumption of the two cars. A representative driving cycle reflecting the real-world driving conditions is proposed and estimated vehicle emissions is compared with measured results. The method is easy to follow and the results correlate well with the estimated values.