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It is increasingly urgent to define a technology that allows the replacement current vehicles powered by internal combustion engines by a more sustainable vehicle. There are several technological options such as electric vehicles, hybrids and vehicles powered by biofuels. So far there is no clear methodology for comparing the strengths and weaknesses of these alternative technologies. This paper presents a methodology that aims to compare from a strategic point of view technological alternatives comprehensively prioritizing their impacts throughout the lifecycle thus providing a clearer basis for decision making.