Lewis Hamilton and Sebastian Vettel have won seven Formula One world titles between them but could they replicate their success in motorsport's Formula E series?
원문출처 : http://edition.cnn.com/2016/04/22/motorsport/formula-e-di-grassi-hamilton-vettel/index.html?eref=edition
원문출처 : http://edition.cnn.com/2016/04/22/motorsport/formula-e-di-grassi-hamilton-vettel/index.html?eref=edition