| Attribute |
 Chevrolet Impala X 2.5 Ecotec Automatic × |  Kia Optima IV (facelift 2018) 2.4 GDI Automatic × |
| General | | |
| Make | Chevrolet | Kia |
| Model | Impala | Optima |
| Generation | Impala X | Optima IV (facelift 2018) |
| Modification | 2.5 Ecotec Automatic | 2.4 GDI Automatic |
| Website | https://www.chevrolet.com | https://www.kia.com |
| Number of doors | 4 | 4 |
| Number of seats | 5 | 5 |
| Body type | Sedan | Sedan |
| Transmission | automatic | automatic |
| Number of gears | 6 | 6 |
| Production from (year) | 2013 | 2018 |
| Performance | | |
| City consumption (l/100km) | 11.2 | 9.4 |
| Extra-urban consumption (l/100km) | 7.5 | 6.7 |
| Combined consumption (l/100km) | - | 8.1 |
| Drive | | |
| Drive | Front wheel drive | Front wheel drive |
| Position of engine | Front, transversely | Front, transversely |
| Fuel | Petrol (Gasoline) | Petrol (Gasoline) |
| Max. power (hp) | 196 | 185 |
| Max. torque (Nm) | 253 | 241 |
| Fuel Engine | | |
| Number of cylinders | 4 | 4 |
| Cylinders arrangement | Inline | Inline |
| Valves per cylinder | 4 | 4 |
| Engine displacement (cm³) | 2,458 | 2,359 |
| Compression ratio | 11.25 | 11.3 |
| Max. power @ rpm (rpm) | 6,300 | 6,000 |
| Max. torque @ rpm (rpm) | 4,400 | 4,000 |
| Cylinder bore (mm) | 88 | 88 |
| Piston stroke (mm) | 101 | 97 |
| Fuel system | Direct injection | Direct injection |
| Valve control | Dohc | Dohc |
| Fuel tank (l) | 70 | 70 |
| Engine oil capacity (l) | 5 | - |
| Coolant capacity (l) | 7.1 | - |
| Chassis | | |
| ABS | + | + |
| Front wheel suspension | Independent, Spring McPherson, with stabilizer | Independent, Spring McPherson, with stabilizer |
| Rear wheel suspension | Independent, spring multi-link with stabilizer | Independent, spring multi-link with stabilizer |
| Steering type | Steering rack | Steering rack |
| Power steering | Electric Steering | Electric Steering |
| Front brakes | Ventilated discs | Ventilated discs |
| Rear brakes | Disc | Disc |
| Tires size | - 235/50 R18
- 245/40 R20
- 245/45 R19
| - 205/65 R16
- 215/55 R17
- 235/45 R18
|
| Turning radius (m) | 11.75 | 10.9 |
| Dimensions | | |
| Length (mm) | 5,113 | 4,854 |
| Width (mm) | 1,854 | 1,859 |
| Height (mm) | 1,496 | 1,466 |
| Wheelbase (mm) | 2,837 | 2,804 |
| Kerb weight (kg) | 1,669 | 1,465 |
| Minimum boot space (l) | 532 | 450 |
| Front track (mm) | 1,580 | 1,603 |
| Rear track (mm) | 1,576 | 1,610 |
| Ride height (mm) | - | 135 |
| Drag coefficient (Cd) | - | 0.27 |