Comparison Kia K8 3.5 Smartstream GDi V6 (300 Hp) AWD Automatic & Hyundai i30 III 1.6 CRDi (110 Hp) & Kia Optima IV (facelift 2018) 2.0 GDI (192 Hp) Hybrid Automatic
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| Brand: | Kia | Hyundai | Kia |
| Model: | K8 | i30 | Optima |
| Generation: | K8 | i30 III | Optima IV (facelift 2018) |
| Engine / modification: | 3.5 Smartstream GDi V6 (300 Hp) AWD Automatic | 1.6 CRDi (110 Hp) | 2.0 GDI (192 Hp) Hybrid Automatic |
| Production start: | 2021 year | 2016 year | 2020 year |
| Production end: | 2018 year | ||
| Coupe type: | Sedan | Hatchback | Sedan |
| Num. of Doors: | 4 | 5 | 4 |
| Num. of seats: | 5 | 5 | 5 |
| Fuel consumption / economy - urban: | 12.2-12.7 l/100 km | 5.9 l/100 km | |
| Fuel consumption / economy - extra urban: | 8-8.3 l/100 km | 5.2 l/100 km | |
| Fuel consumption / economy - combined: | 10.3-10.7 l/100 km | ||
| Fuel Type: | Petrol (Gasoline) | Diesel | Petrol (Gasoline) |
| Fuel tank volume: | 64 l | 50 l | 60 l |
| CO2 emissions: | 175-183 g/km | 96-99 g/km | |
| Power: | 300 hp | 110 hp | 154 hp |
| Max power in: | 6400 rpm. | 4000 rpm. | 6000 rpm. |
| Maximum speed: | 190 km/h | ||
| Acceleration from 0 to 100 km/h: | 11.0 sec | ||
| Torque: | 359 Nm @ 5000 rpm. | 280 Nm @ 1500-2500 rpm. | 190 Nm @ 5000 rpm. |
| Engine position: | Front, transverse | ||
| Engine displacement: | 3470 cm3 | 1582 cm3 | 1999 cm3 |
| Fuel System: | Diesel Commonrail | Direct injection | |
| Aspiration / Turbine: | Turbo / Intercooler (Turbocharging / Intercooler) | ||
| Position of cylinders: | Inline | Inline | |
| Valvetrain: | DOHC | Dual CVVT | |
| Number of cylinders: | 6 | 4 | 4 |
| Number of valves per cylinder: | 4 | 4 | |
| Compression ratio: | 16 | 13.5 | |
| Piston Stroke: | 84.5 mm | ||
| Cylinder Bore: | 77.2 mm | ||
| Electric motor power: | 51 | ||
| Electric motor Torque: | 205 @ 0-1770 rpm. Nm | ||
| Battery capacity: | 1.76 kWh | ||
| System power: | 192 Hp @ 6 hp/ rpm. | ||
| System torque: | 367 Nm @ 1 Nm/ rpm. | ||
| Wheel Drive: | All wheel drive (4x4) | Front wheel drive | Front wheel drive |
| Number of Gears (automatic transmission): | 8 | 6 | |
| Number of Gears (manual transmission): | 6 | ||
| Length: | 5015 mm | 4340 mm | 4855 mm |
| Width: | 1875 mm | 1795 mm | 1860 mm |
| Height: | 1455 mm | 1455 mm | 1460 mm |
| Wheelbase: | 2895 mm | 2650 mm | |
| Front track: | 1621-1626 mm | ||
| Rear (Back) track: | 1627-1632 mm | ||
| Ride height(clearance): | 140 mm | ||
| Front overhang: | 905 mm | ||
| Rear overhang: | 785 mm | ||
| Minimum volume of Luggage (trunk): | 395 l | 380 l | |
| Maximum amount of Luggage (trunk): | 1301 l | ||
| Front suspension: | Independent type McPherson | Independent type McPherson | Independent type McPherson |
| Rear suspension: | Multi-link independent | Multi-link independent | Multi-link independent |
| Max weight: | 1860 kg | ||
| Front brakes: | Ventilated discs | Ventilated discs | |
| Rear brakes: | Disc | Disc | |
| Kerb Weight: | 1705-1715 kg | 1263-1411 kg | 1586-1638 kg |
| ABS: | yes | yes | |
| Steering type: | Steering rack and pinion | Steering rack and pinion | |
| Power steering: | Electric Steering | Electric Steering | |
| Minimum turning circle (turning diameter): | 10.6 m | ||
| Tire size: | 245/45 R18; 245/40 R19 | 195/65 R15; 205/55 R16; 225/45 R17 | 205/65 R16; 215/55 R17 |
| Wheel rims size: | R18; R19 | 6.0J x 15; 6.5J x 16; 7.0J x 17 | R16; R17 |