Task: Translation
Input (Spanish): Por ello creemos que los vehículos que en futuro empleen métodos de construcción ligera convincentes y comprobables producirán menos CO2 y disfrutarán de preferencia especial en la cuota de combustión.
Output (English): This would represent real environmental progress because it would lead to a large reduction in CO2 which, if I have rightly understood the Kyoto Protocol, is the important factor. We therefore consider that, in future, vehicles which clearly and effectively use lightweight construction methods will produce less CO2 and should receive preferential treatment in their combustion quotas.