Increase final energy demand in case of LNG.
Reduce total diesel / gasoline consumption.
No increase of the share of renewable energy sources in the energy mix (unless biogas is used).
Likely to increase energy security (through diversification).
Reduce CO2 emissions by up to 25% per km (on a Well to Wheel basis). 
Slightly reduce emissions of harmful pollutants.
Slightly reduce noise of engines compared with diesel equivalent.
Likely to have no impact on deposited waste.
Likely to have limited impact on the cost of the energy transition.
Despite higher purchase cost, may reduce total cost forvehicles owners.
Likely to have limited impacts on balance of payments.
Reduces Confederation income from the tax on mineral oil under the current taxation system.
Require fuelling and distribution infrastructure to be created
A CNG vehicle runs on compressed natural gas or biogas. The gas is stored on board in high pressure tanks (200-250 bar). An alternative, Liquefied Natural Gas (LNG) is sometimes favoured in trucks due to the increased energy density of liquefied gas.
NGVs can be refuelled at filling stations (where available) similar to gasoline and diesel vehicles.
• Requires natural gas infrastructure, although the dual fuel type can revert to diesel operation if gas is not available.
• Shorter range than standard diesel/gasoline vehicles because natural gas has a lower energy density and so is harder to fit onto vehicles (at 250 bar, the energy density of CNG is almost 4 times lower compared to gasoline).
• Potentially reduced load carrying capacity.
• Limited number of filling stations.
• Higher purchase price than equivalent gasoline/diesel vehicle due to lower scale economies.
• LNG cars, at least, are not allowed in some closed places (e.g. garages)