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Globally, liquid petroleum gas (LPG) is the most widely used alternative motor fuel. Outside the US, LPG is commonly referred to as autogas when used as an automotive fuel. Autogas is Europe’s leading alternative fuel, with approximately 10 million vehicles using it (WLPGA, 2013a). European countries with the largest percentage of autogas use for passenger vehicles are Turkey (at 25%) and Poland (at 15%). This study investigates the implications of LPG fuelling of a passenger car featuring a spark-ignition engine regarding the possibility of meeting Euro 6 emissions limits for gaseous pollutants. This paper presents an analysis of CO, THC, NMHC, NOx and CO2 emissions during testing of a vehicle on a chassis dynamometer, fuelled with LPG, in the context of the new Euro 6 emissions requirements. The analyses were performed on a Euro 6 bi-fuel vehicle with an SI engine equipped with an MPI feeding system operating in closed-loop control, a typical three-way-catalyst, and a heated oxygen sensor. The vehicles had been adapted by their manufacturer for fuelling with LPG by using additional special equipment mounted onto the existing petrol fuelling system. The vehicles tested featured a multipoint gas injection system (IV generation). The tests subject to the analyses presented here were performed in the Engine Research Department of BOSMAL Automotive Research and Development Institute Ltd in Bielsko-Biala, Poland, within a research programme investigating the influence of alternative fuels on exhaust emissions from automotive vehicles with spark-ignition and compression-ignition engines.