Fuel tank: 48 of 54 variants rated.
Smart forfour EQ comfort tops the Smart forfour ranking by Fuel tank, at 55 L (14.5 gal US).
Across 48 ranked variants, Fuel tank spans from 28 L (7.4 gal US) to 55 L (14.5 gal US).
| # | Variant | Year | Body | Fuel | Fuel tank |
|---|---|---|---|---|---|
| 1 | Smart forfour EQ comfort | 2019 | Hatchback | Electric | 55 L (14.5 gal US) |
| 2 | Smart forfour EQ comfort Plus | 2019 | Hatchback | Electric | 55 L (14.5 gal US) |
| 3 | Smart forfour EQ Brabus style | 2019 | Hatchback | Electric | 55 L (14.5 gal US) |
| 4 | Smart forfour 1.0 | 2005 | Hatchback | Petrol | 47 L (12.4 gal US) |
| 5 | Smart forfour 1.0 pure | 2005 | Hatchback | Petrol | 47 L (12.4 gal US) |
| 6 | Smart forfour 1.1 pure+1 | 2005 | Hatchback | Petrol | 47 L (12.4 gal US) |
| 7 | Smart forfour 1.1 pulse | 2005 | Hatchback | Petrol | 47 L (12.4 gal US) |
| 8 | Smart forfour 1.1 passion | 2005 | Hatchback | Petrol | 47 L (12.4 gal US) |
| 9 | Smart forfour 1.3 pure+1 | 2005 | Hatchback | Petrol | 47 L (12.4 gal US) |
| 10 | Smart forfour 1.5 Brabus | 2005 | Hatchback | Petrol | 47 L (12.4 gal US) |
| 11 | Smart forfour 1.5 cdi 50kW pure+1 | 2005 | Hatchback | Diesel | 47 L (12.4 gal US) |
| 12 | Smart forfour 1.5 cdi 70kW pure+1 | 2005 | Hatchback | Diesel | 47 L (12.4 gal US) |
| 13 | Smart forfour 1.1 blackbasic | 2004 | Hatchback | Petrol | 47 L (12.4 gal US) |
| 14 | Smart forfour 1.1 pulse | 2004 | Hatchback | Petrol | 47 L (12.4 gal US) |
| 15 | Smart forfour 1.1 passion | 2004 | Hatchback | Petrol | 47 L (12.4 gal US) |
| 16 | Smart forfour 1.3 pulse+1 | 2004 | Hatchback | Petrol | 47 L (12.4 gal US) |
| 17 | Smart forfour 1.3 passion+1 | 2004 | Hatchback | Petrol | 47 L (12.4 gal US) |
| 18 | Smart forfour 1.5 pulse+1 | 2004 | Hatchback | Petrol | 47 L (12.4 gal US) |
| 19 | Smart forfour 1.5 passion+1 | 2004 | Hatchback | Petrol | 47 L (12.4 gal US) |
| 20 | Smart forfour 1.5 sportstyle+1 | 2004 | Hatchback | Petrol | 47 L (12.4 gal US) |
| 21 | Smart forfour 1.5 cdi 50kW blackbasic | 2004 | Hatchback | Diesel | 47 L (12.4 gal US) |
| 22 | Smart forfour 1.5 cdi 50kW pulse+1 | 2004 | Hatchback | Diesel | 47 L (12.4 gal US) |
| 23 | Smart forfour 1.5 cdi 50kW passion+1 | 2004 | Hatchback | Diesel | 47 L (12.4 gal US) |
| 24 | Smart forfour 1.5 cdi 70kW pulse+1 | 2004 | Hatchback | Diesel | 47 L (12.4 gal US) |
| 25 | Smart forfour 1.5 cdi 70kW passion+1 | 2004 | Hatchback | Diesel | 47 L (12.4 gal US) |
| 26 | Smart forfour BRABUS | 2016 | Hatchback | Petrol | 35 L (9.2 gal US) |
| 27 | Smart forfour BRABUS Xclusive | 2016 | Hatchback | Petrol | 35 L (9.2 gal US) |
| 28 | Smart forfour 52kW Business Solution+1 | 2017 | Hatchback | Petrol | 28 L (7.4 gal US) |
| 29 | Smart forfour 52kW Business Solution Plus+1 | 2017 | Hatchback | Petrol | 28 L (7.4 gal US) |
| 30 | Smart forfour 52kW Perfect+1 | 2017 | Hatchback | Petrol | 28 L (7.4 gal US) |
| 31 | Smart forfour 66kW Perfect+1 | 2017 | Hatchback | Petrol | 28 L (7.4 gal US) |
| 32 | Smart forfour 52kW | 2015 | Hatchback | Petrol | 28 L (7.4 gal US) |
| 33 | Smart forfour 52kW Pure | 2015 | Hatchback | Petrol | 28 L (7.4 gal US) |
| 34 | Smart forfour 52kW Passion | 2015 | Hatchback | Petrol | 28 L (7.4 gal US) |
| 35 | Smart forfour 52kW Prime | 2015 | Hatchback | Petrol | 28 L (7.4 gal US) |
| 36 | Smart forfour 52kW Proxy | 2015 | Hatchback | Petrol | 28 L (7.4 gal US) |
| 37 | Smart forfour 66kW Pure+1 | 2015 | Hatchback | Petrol | 28 L (7.4 gal US) |
| 38 | Smart forfour 66kW Passion+1 | 2015 | Hatchback | Petrol | 28 L (7.4 gal US) |
| 39 | Smart forfour 66kW Prime+1 | 2015 | Hatchback | Petrol | 28 L (7.4 gal US) |
| 40 | Smart forfour 66kW Proxy+1 | 2015 | Hatchback | Petrol | 28 L (7.4 gal US) |
| 41 | Smart forfour 66kW Edition 1 | 2015 | Hatchback | Petrol | 28 L (7.4 gal US) |
| 42 | Smart forfour 52kW Pure | 2014 | Hatchback | Petrol | 28 L (7.4 gal US) |
| 43 | Smart forfour 52kW Essential Edition | 2014 | Hatchback | Petrol | 28 L (7.4 gal US) |
| 44 | Smart forfour 52kW Passion | 2014 | Hatchback | Petrol | 28 L (7.4 gal US) |
| 45 | Smart forfour 52kW Joy Edition | 2014 | Hatchback | Petrol | 28 L (7.4 gal US) |
| 46 | Smart forfour 52kW Prime | 2014 | Hatchback | Petrol | 28 L (7.4 gal US) |
| 47 | Smart forfour 52kW Proxy | 2014 | Hatchback | Petrol | 28 L (7.4 gal US) |
| 48 | Smart forfour 52kW Edition 1 | 2014 | Hatchback | Petrol | 28 L (7.4 gal US) |