Technical specifications
| Clear list | Kia Optima | Infiniti Q50 |
| Totals | Kia Optima 2.4 × | Infiniti Q50 2.1d × |
| Mark | Kia | Infiniti |
| Model | Optima 2.4 | Q50 2.1d |
| Year | 2018 | 2017 |
| Number of doors/seats | 4/5 | 4/5 |
| Body type | Sedan | Sedan |
| Unladen Weight | 1575 | 1667 (1688) |
| Gross Weight Limit | 2050 | - |
| Top Speed, km/h | 210 | 231 (230) |
| Acceleration 0-100 kph | 9.1 | 8.9 (8.7) |
| Minimum turning radius, m | - | 5.6 |
| Cargo Volume, min/max, L | 510 | 500 |
| Dimensions specifications, mm | Kia Optima 2.4 × | Infiniti Q50 2.1d × |
| Length | 4855 | 4810 |
| Width | 1860 | 1820 |
| Height | 1485 | 1445 |
| Wheelbase | 2805 | 2850 |
| Front/rear Track | 1594/1595 | 1545/1565 |
| Ground clearance | 155 | 126 |
| Engine specifications | Kia Optima 2.4 × | Infiniti Q50 2.1d × |
| Type | petrol Injection | turbo diesel Common Rail |
| Displacement, cm3 | 2360 | 2143 |
| Compression ratio | 11.3 | 16.2 |
| Number and arrangement of cylinders | 4 cylinders, in-line | 4 cylinders, in-line |
| The diameter of the cylinder x stroke, mm | 88x97 | 83x99 |
| Number of valves | 16 | 16 |
| Power, hp/rpm | 188/6000 | 170/3400-4000 |
| Max torque, Nm/RPM | 242/4000 | 350/1400-3400 |
| Transmission specifications | Kia Optima 2.4 × | Infiniti Q50 2.1d × |
| Gearbox | 6-speed automatic | 6-speed manual / 7-speed automatic |
| Drive Type | Front wheel drive | Rear wheel drive |
| Suspension specifications | Kia Optima 2.4 × | Infiniti Q50 2.1d × |
| Front | MacPherson strut | Upper and lower A-arm (double wishbone) |
| Rear | multi-link suspensions | multi-link suspensions |
| Tire Size | 215/60 R16, 215/55 R17 | 225/50 R18 |
| Disk | 5x114.3 ET45 d67.1
| 5x114.3 ET45 d66.1
|
| Brakes specifications | Kia Optima 2.4 × | Infiniti Q50 2.1d × |
| Front | Ventilated discs | Ventilated discs |
| Rear | Discs | Ventilated discs |
| Fuel consumption specifications, L/100 km | Kia Optima 2.4 × | Infiniti Q50 2.1d × |
| City | 12 | 5.5 (5.7) |
| Highway | 6.2 | 3.7 (3.9) |
| Combined | 8.3 | 4.3 (4.5) |
| Fuel | 95 | Diesel |
| Tank, L | 70 | 80 |
| Clear list | Kia Optima | Infiniti Q50 |
