Technical specifications
| Clear list | Hyundai i40 | Kia Optima (2016-2018) |
| Totals | Hyundai i40 1.7 CRDi × | Kia Optima (2016-2018) 1.7 CRDi × |
| Mark | Hyundai | Kia |
| Model | i40 1.7 CRDi | Optima (2016-2018) 1.7 CRDi |
| Year | 2015 | 2016-2018 |
| Number of doors/seats | 4/5 | 4/5 |
| Body type | Sedan | Sedan |
| Unladen Weight | 1599 | 1515 (1530) |
| Gross Weight Limit | 2100 | 2070 (2080) |
| Top Speed, km/h | 203 | 203 (203) |
| Acceleration 0-100 kph | 10.8 | 10 (11) |
| Minimum turning radius, m | 5.47 | - |
| Cargo Volume, min/max, L | 505 | 510 |
| Dimensions specifications, mm | Hyundai i40 1.7 CRDi × | Kia Optima (2016-2018) 1.7 CRDi × |
| Length | 4745 | 4855 |
| Width | 1815 | 1860 |
| Height | 1470 | 1465 |
| Wheelbase | 2770 | 2805 |
| Front/rear Track | 1591/1597, 1579/1585 | 1607/1614 |
| Ground clearance | 147 | 135 |
| Engine specifications | Hyundai i40 1.7 CRDi × | Kia Optima (2016-2018) 1.7 CRDi × |
| Type | turbo diesel Common Rail | turbo diesel Common Rail |
| Displacement, cm3 | 1685 | 1685 |
| Compression ratio | 17 | 15.7 |
| Number and arrangement of cylinders | 4 cylinders, in-line | 4 cylinders, in-line |
| The diameter of the cylinder x stroke, mm | 77.2x90 | 77.2x90 |
| Number of valves | 16 | 16 |
| Power, hp/rpm | 141/4000 | 141/4000 |
| Max torque, Nm/RPM | 340/1750-2500 | 340/1750-2500 |
| Transmission specifications | Hyundai i40 1.7 CRDi × | Kia Optima (2016-2018) 1.7 CRDi × |
| Gearbox | 7-speed automatic | 6-speed manual / 7-speed automatic DCT |
| Drive Type | Front wheel drive | Front wheel drive |
| Suspension specifications | Hyundai i40 1.7 CRDi × | Kia Optima (2016-2018) 1.7 CRDi × |
| Front | MacPherson strut | MacPherson strut |
| Rear | multi-link suspensions | multi-link suspensions |
| Tire Size | 205/60 R16, 215/50 R17 | 215/60 R16, 215/55 R17 |
| Disk | 5x114.3 ET45 d67.1
| 5x114.3 ET45 d67.1
|
| Brakes specifications | Hyundai i40 1.7 CRDi × | Kia Optima (2016-2018) 1.7 CRDi × |
| Front | Ventilated discs | Ventilated discs |
| Rear | Discs | Discs |
| Fuel consumption specifications, L/100 km | Hyundai i40 1.7 CRDi × | Kia Optima (2016-2018) 1.7 CRDi × |
| City | 5.9 | 5.6 (5.1) |
| Highway | 4.7 | 4.1 (4.1) |
| Combined | 5.1 | 4.6 (4.4) |
| Fuel | Diesel | Diesel |
| Tank, L | 70 | 70 |
| Clear list | Hyundai i40 | Kia Optima (2016-2018) |
