Smart ForFour fuel consumption
Year-to-year deviations of actual owner-reported average fuel consumption from advertised values
| Year | Gasoline cars | Diesel cars | ||
|---|---|---|---|---|
| All carmakers | Smart ForFour | All carmakers | Smart ForFour | |
| 2004 | +7% | +16% | +9% | +21% |
| Show all years | ||||
| 2005 | +8% | +16% | +10% | +21% |
| 2006 | +9% | +17% | +11% | +21% |
| 2014 | +26% | +41% | +30% | - |
| 2015 | +27% | +41% | +33% | - |
| 2016 | +28% | +41% | +36% | - |
| 2017 | +28% | +41% | +38% | - |
| 2018 | +28% | +45% | +39% | - |
| 2019 | +28% | +45% | +37% | - |
See below for the actual consumption of generations and versions of Smart ForFour.
Smart ForFour 2014 fuel economy
| Average advertised fuel consumption for petrol engines | 54.4 MPG 4.3 l/100km |
| Average real-world fuel consumption for petrol engines | 38.7 MPG 6.1 l/100km |
| Average real gasoline consumption difference * | +41% |
According to advertised fuel consumption, Smart ForFour 2014 with automatic transmission have almost the same fuel economy as similar versions with manual gearbox. Based on user-reported real-world fuel consumption, this generation Smart ForFour with automatic transmission consumes around 0.2 litres per 100 km or 3% more fuel than a version with the same engine but a manual gearbox.
Compared to similar cars of other manufacturers, the Smart ForFour advertised fuel economy is slightly better than average, but according to available user reports on actual consumption, real fuel economy is slightly worse than average.
The best real fuel economy in its class according to user reviews of all the modifications has modification with 0.9 petrol engine and manual transmission (SMART forfour 2014 0.9 90 HP). However, of all modifications the best advertised fuel economy in its class has Smart ForFour with 0.9 petrol engine and automatic transmission (SMART forfour 2014 0.9 Automatic 90 HP).
The table below shows the real and claimed fuel consumption and the differences for specific versions.
| Modification | Claimed consumption | Real consumption |
|---|---|---|
| 0.9 liter petrol engine | ||
| SMART forfour 2014 0.9 90 HP manual | 54.7 MPG 4.3 l/100km |
37.9 MPG 6.2 l/100km+44% |
| SMART forfour 2014 0.9 Automatic 90 HP automatic | 56.0 MPG 4.2 l/100km |
36.8 MPG 6.4 l/100km+52% |
| 1.0 liter petrol engine | ||
| SMART forfour 2014 1.0 60 Hp 60 HP manual | 50.0 MPG 4.7 l/100km |
40.6 MPG 5.8 l/100km+23% |
| SMART forfour 2014 1.0 71 Hp 71 HP manual | 56.0 MPG 4.2 l/100km |
39.9 MPG 5.9 l/100km+40% |
| SMART forfour 2014 1.0 71 Hp Automatic 71 HP automatic | 56.0 MPG 4.2 l/100km |
38.6 MPG 6.1 l/100km+45% |
Smart ForFour 2004 fuel economy
| Average advertised fuel consumption for petrol engines | 39.9 MPG 5.9 l/100km |
| Average real-world fuel consumption for petrol engines | 34.8 MPG 6.8 l/100km |
| Average real gasoline consumption difference * | +16% |
| Average advertised fuel consumption for diesel engines | 51.1 MPG 4.6 l/100km |
| Average real-world fuel consumption for diesel engines | 42.4 MPG 5.6 l/100km |
| Average real diesel consumption difference * | +21% |
According to advertised fuel consumption, a Smart ForFour 2004 with automatic transmission consumes on average 0.1 liters per 100 km or 2% less fuel than similar versions with manual gearbox. Based on user-reported real-world fuel consumption, this generation Smart ForFour with automatic transmission consumes around 0.2 litres per 100 km or 4% more fuel than a version with the same engine but a manual gearbox.
Compared to similar cars of other manufacturers, the Smart ForFour advertised fuel economy is significantly above average, but according to available user reports on actual consumption, real fuel economy is significantly above average.
The best real fuel economy in its class according to user reviews of all the modifications has modification with 1.5 petrol engine and manual transmission (Smart Forfour 2004 1.5 109 Hp 109 HP). However, of all modifications the best advertised fuel economy in its class has Smart ForFour with 1.5 petrol engine and automatic transmission (Smart Forfour 2004 1.5 109 Hp Automatic 109 HP).
The table below shows the real and claimed fuel consumption and the differences for specific versions.
| Modification | Claimed consumption | Real consumption |
|---|---|---|
| 1.1 liter petrol engine | ||
| Smart Forfour 2005 1.1 1.0 64 HP manual | 43.6 MPG 5.4 l/100km |
39.2 MPG 6.0 l/100km+11% |
| Smart Forfour 2004 1.1 75 HP manual | 42.8 MPG 5.5 l/100km |
37.9 MPG 6.2 l/100km+13% |
| Smart Forfour 2005 1.1 Automatic 75 HP automatic | 44.4 MPG 5.3 l/100km |
37.9 MPG 6.2 l/100km+17% |
| 1.3 liter petrol engine | ||
| Smart Forfour 2004 1.3 95 HP manual | 40.6 MPG 5.8 l/100km |
35.6 MPG 6.6 l/100km+14% |
| Smart Forfour 2004 1.3 Automatic 95 HP automatic | 42.0 MPG 5.6 l/100km |
34.1 MPG 6.9 l/100km+23% |
| 1.5 liter petrol engine | ||
| Smart Forfour 2004 1.5 109 Hp 109 HP manual | 38.6 MPG 6.1 l/100km |
34.6 MPG 6.8 l/100km+11% |
| Smart Forfour 2004 1.5 109 Hp Automatic 109 HP automatic | 40.6 MPG 5.8 l/100km |
32.2 MPG 7.3 l/100km+26% |
| Smart Forfour 2004 1.5 122 Hp 122 HP manual | 37.3 MPG 6.3 l/100km |
35.1 MPG 6.7 l/100km+6% |
| Smart Forfour 2004 1.5 122 Hp Automatic 122 HP automatic | 36.8 MPG 6.4 l/100km |
|
| Smart Forfour 2005 1.5 Brabus 177 HP manual | 34.6 MPG 6.8 l/100km |
29.0 MPG 8.1 l/100km+19% |
| 1.5 liter diesel engine | ||
| Smart Forfour 2004 1.5 Cdi 68 Hp 68 HP manual | 51.1 MPG 4.6 l/100km |
44.4 MPG 5.3 l/100km+15% |
| Smart Forfour 2004 1.5 Cdi 68 Hp Automatic 68 HP automatic | 51.1 MPG 4.6 l/100km |
40.6 MPG 5.8 l/100km+26% |
| Smart Forfour 2004 1.5 Cdi 95 Hp 95 HP manual | 51.1 MPG 4.6 l/100km |
42.0 MPG 5.6 l/100km+22% |
| Smart Forfour 2004 1.5 Cdi 95 Hp Automatic 95 HP automatic | 51.1 MPG 4.6 l/100km |
42.8 MPG 5.5 l/100km+20% |
* - Difference between advertised and user reported fuel economy has been calculated taking into account only those car versions for which information is available both on the fuel consumption specified by the manufacturer and reported by users.