AERO History Car name (competition years) Hybrids GreenSpeed 1 (2008, 2009) GreenSpeed 2 (2010) GreenSpeed 3 (2011) GreenSpeed 3.5 (2012) GreenSpeed 4 (2015) Electrics CleanSpeed 1 (2013) CleanSpeed 1.5 (2014) CleanSpeed 2 (2016) CleanSpeed 3 (2017, 2018) CleanSpeed 4 (2019, 2020)