Most efficient EVs: Convertible, every model year
Every EV with a published EPA combined efficiency, lowest energy use first, in kilowatt-hours per 100 miles. Fewer kWh per 100 miles means a cheaper charge for the same distance.
11 of 11 EVs have a published EPA efficiency figure
- 1
Photo credit
Photo: IFCAR, Public domain
31.5 kWh/100 mi
Compare the 2015 Smart fortwo electric drive Cabrio - 1
Photo credit
Photo: IFCAR, Public domain
31.5 kWh/100 mi
Compare the 2016 Smart fortwo electric drive Cabrio - 3
Photo credit
Photo: IFCAR, Public domain
32.0 kWh/100 mi
Compare the 2013 Smart fortwo electric drive Cabrio - 3
Photo credit
Photo: IFCAR, Public domain
32.0 kWh/100 mi
Compare the 2014 Smart fortwo electric drive Cabrio - 5
33.0 kWh/100 mi
Compare the 2017 Smart fortwo electric drive Cabrio - 5
33.0 kWh/100 mi
Compare the 2018 Smart fortwo electric drive Cabrio - 5
Photo credit
Photo: Alexander Migl, CC BY-SA 4.0
33.0 kWh/100 mi
Compare the 2019 Smart EQ fortwo Cabrio - 8
Photo credit
Photo: IFCAR, Public domain
39.0 kWh/100 mi
Compare the 2011 Smart fortwo electric drive Cabrio - 9
40.7 kWh/100 mi
Compare the 2026 Maserati GranCabrio Folgore - 10
41.1 kWh/100 mi
Compare the 2025 Maserati GranCabrio Folgore - 11
41.2 kWh/100 mi
Compare the 2024 Maserati GranCabrio Folgore
How this list is made
- Shorter bar, less energy per mile. Bars are measured from zero against the top value; the dark tick marks the average of all 11 ranked here.
- Scores are John’s, shown only where he has scored a car, and they don’t affect the order. How John scores.
- Each car’s page lists the source of every figure and when it was last checked.