Technical specifications
| Clear list | Mazda 6 (2015-2018) | Kia Optima |
| Totals | Mazda 6 (2015-2018) 2.5 × | Kia Optima 2.4 × |
| Mark | Mazda | Kia |
| Model | 6 (2015-2018) 2.5 | Optima 2.4 |
| Year | 2015-2018 | 2018 |
| Number of doors/seats | 4/5 | 4/5 |
| Body type | Sedan | Sedan |
| Unladen Weight | 1340 | 1575 |
| Gross Weight Limit | - | 2050 |
| Top Speed, km/h | 220 | 210 |
| Acceleration 0-100 kph | 7.8 | 9.1 |
| Minimum turning radius, m | 6 | - |
| Cargo Volume, min/max, L | 483 | 510 |
| Dimensions specifications, mm | Mazda 6 (2015-2018) 2.5 × | Kia Optima 2.4 × |
| Length | 4870 | 4855 |
| Width | 1840 | 1860 |
| Height | 1450 | 1485 |
| Wheelbase | 2830 | 2805 |
| Front/rear Track | 1585/1575 | 1594/1595 |
| Ground clearance | 165 | 155 |
| Engine specifications | Mazda 6 (2015-2018) 2.5 × | Kia Optima 2.4 × |
| Type | Gasoline Direct Injection | petrol Injection |
| Displacement, cm3 | 2488 | 2360 |
| Compression ratio | 13 | 11.3 |
| Number and arrangement of cylinders | 4 cylinders, in-line | 4 cylinders, in-line |
| The diameter of the cylinder x stroke, mm | 89х100 | 88x97 |
| Number of valves | 16 | 16 |
| Power, hp/rpm | 192/5700 | 188/6000 |
| Max torque, Nm/RPM | 256/4000 | 242/4000 |
| Transmission specifications | Mazda 6 (2015-2018) 2.5 × | Kia Optima 2.4 × |
| Gearbox | 6-speed automatic | 6-speed automatic |
| Drive Type | Front wheel drive | Front wheel drive |
| Suspension specifications | Mazda 6 (2015-2018) 2.5 × | Kia Optima 2.4 × |
| Front | MacPherson strut | MacPherson strut |
| Rear | multi-link suspensions | multi-link suspensions |
| Tire Size | 225/55 R17, 225/45 R19 | 215/60 R16, 215/55 R17 |
| Disk | 5x114.3 ET50 d67.1
| 5x114.3 ET45 d67.1
|
| Brakes specifications | Mazda 6 (2015-2018) 2.5 × | Kia Optima 2.4 × |
| Front | Ventilated discs | Ventilated discs |
| Rear | Discs | Discs |
| Fuel consumption specifications, L/100 km | Mazda 6 (2015-2018) 2.5 × | Kia Optima 2.4 × |
| City | 8.5 | 12 |
| Highway | 5 | 6.2 |
| Combined | 6.5 | 8.3 |
| Fuel | 95 | 95 |
| Tank, L | 62 | 70 |
| Clear list | Mazda 6 (2015-2018) | Kia Optima |
