This report aims at improving knowledge on Euro 6 gasoline and Diesel emissions. Emission factors of regulated and unregulated compounds have been measured on a chassis dynamometer bench test on Artemis urban with cold and hot start, road, motorway, NEDC and WLTC cycles. Urban cold start induced an over-emission of PN (particle number), BC (black carbon), BTEX (benzene, toluene, ethylbenzene and xylenes) and formaldehyde, and under-emission of NOx comparing to hot start. For gasoline vehicle with propulsion engine, CO emission reached to 2.7.104 mg/km under Artemis motorway driving condition that can be explained in part by the high exhaust temperature (600 °C) at high speed inducing a decrease of combustion time. Though, only one propulsion vehicle has been tested in this work. It is difficult to confirm whether this high CO emission behavior is an individual emission event or a systematic behavior, and to provide appropriate CO emission factors under high exhaust temperature with propulsion engine. The FTIR measurements show reliable on-line data comparing to those obtained by Horiba emissions measurement system. However, some modifications on the parameterization and the experimental setup will be carried out to better quantify the compounds for which their emissions are closed to their quantification limit.