Comparison Kia Optima IV (facelift 2018) 2.4 GDI (185 Hp) Automatic & Kia K8 3.5 Smartstream GDi V6 (300 Hp) AWD Automatic
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| Brand: | Kia | Kia |
| Model: | Optima | K8 |
| Generation: | Optima IV (facelift 2018) | K8 |
| Engine / modification: | 2.4 GDI (185 Hp) Automatic | 3.5 Smartstream GDi V6 (300 Hp) AWD Automatic |
| Production start: | 2018 year | 2021 year |
| Coupe type: | Sedan | Sedan |
| Num. of Doors: | 4 | 4 |
| Num. of seats: | 5 | 5 |
| Fuel consumption / economy - urban: | 9.4-9.8 l/100 km | 12.2-12.7 l/100 km |
| Fuel consumption / economy - extra urban: | 6.7-7.1 l/100 km | 8-8.3 l/100 km |
| Fuel consumption / economy - combined: | 8.1-8.7 l/100 km | 10.3-10.7 l/100 km |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.27 | |
| Fuel tank volume: | 70 l | 64 l |
| CO2 emissions: | 175-183 g/km | |
| Power: | 185 hp | 300 hp |
| Max power in: | 6000 rpm. | 6400 rpm. |
| Torque: | 241 Nm @ 4000 rpm. | 359 Nm @ 5000 rpm. |
| Engine position: | Front, transverse | |
| Engine displacement: | 2359 cm3 | 3470 cm3 |
| Fuel System: | Direct injection | |
| Position of cylinders: | Inline | |
| Valvetrain: | DOHC | |
| Number of cylinders: | 4 | 6 |
| Number of valves per cylinder: | 4 | |
| Compression ratio: | 11.3 | |
| Piston Stroke: | 97 mm | |
| Cylinder Bore: | 88 mm | |
| Wheel Drive: | Front wheel drive | All wheel drive (4x4) |
| Number of Gears (automatic transmission): | 6 | 8 |
| Length: | 4854 mm | 5015 mm |
| Width: | 1859 mm | 1875 mm |
| Height: | 1466 mm | 1455 mm |
| Wheelbase: | 2804 mm | 2895 mm |
| Front track: | 1603-1613 mm | 1621-1626 mm |
| Rear (Back) track: | 1610-1621 mm | 1627-1632 mm |
| Ride height(clearance): | 135 mm | |
| Minimum volume of Luggage (trunk): | 450 l | |
| Front suspension: | Independent, Spring McPherson, with stabilizer | Independent type McPherson |
| Rear suspension: | Independent, spring multi-link with stabilizer | Multi-link independent |
| Front brakes: | Ventilated discs | Ventilated discs |
| Rear brakes: | Disc | Disc |
| Kerb Weight: | 1465-1496 kg | 1705-1715 kg |
| ABS: | yes | |
| Steering type: | Steering rack and pinion | |
| Power steering: | Electric Steering | |
| Minimum turning circle (turning diameter): | 10.9 m | |
| Tire size: | 205/65 R16; 215/55 R17; 235/45 R18 | 245/45 R18; 245/40 R19 |
| Wheel rims size: | 6.5J x 16; 7.0J x 17; 7.5J 18 | R18; R19 |