Comparison BMW X3 (E83) 2.0d (150 Hp) & Kia Optima III 2.4 GDI (194 Hp) Automatic & Mazda 323 S V (BA) 1.7 TD (82 Hp)
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| Brand: | BMW | Kia | Mazda |
| Model: | X3 | Optima | 323 |
| Generation: | X3 (E83) | Optima III | 323 S V (BA) |
| Engine / modification: | 2.0d (150 Hp) | 2.4 GDI (194 Hp) Automatic | 1.7 TD (82 Hp) |
| Production start: | 2004 year | 2010 year | 1994 year |
| Production end: | 2006 year | 2013 year | 1998 year |
| Coupe type: | SUV | Sedan | Sedan |
| Num. of Doors: | 5 | 4 | 4 |
| Num. of seats: | 5 | 5 | 5 |
| Fuel consumption / economy - urban: | 9.6 l/100 km | ||
| Fuel consumption / economy - extra urban: | 5.9 l/100 km | ||
| Fuel consumption / economy - combined: | 7.2 l/100 km | 8.7 l/100 km | 6.3 l/100 km |
| Fuel Type: | Diesel | Petrol (Gasoline) | Diesel |
| Drag coefficient: | 0.285 | ||
| Fuel tank volume: | 67 l | 70 l | 47 l |
| Power: | 150 hp | 194 hp | 82 hp |
| Max power in: | 4000 rpm. | 6300 rpm. | 4400 rpm. |
| Maximum speed: | 198 km/h | 170 km/h | |
| Acceleration from 0 to 100 km/h: | 10.2 sec | 14.2 sec | |
| Torque: | 330 Nm @ 2000 rpm. | 245 Nm @ 4250 rpm. | 168 Nm @ 2400 rpm. |
| Model Engine: | M47D20 | ||
| Engine position: | Front, longitudinal | Front, transverse | Front, transverse |
| Engine displacement: | 1995 cm3 | 2359 cm3 | 1686 cm3 |
| Engine oil capacity: | 4.25 l | 4.6 l | |
| Fuel System: | Diesel Commonrail | Direct injection | Diesel - Standard diesel injection (SDI) |
| Aspiration / Turbine: | Turbocharger | Turbocharging | |
| Position of cylinders: | Inline | Inline | Inline |
| Valvetrain: | - | DOHC, D-CVVT | OHC |
| Number of cylinders: | 4 | 4 | 4 |
| Number of valves per cylinder: | 4 | 4 | 4 |
| Compression ratio: | 17 | 11.3 | 22 |
| Piston Stroke: | 90 mm | 97 mm | 86 mm |
| Cylinder Bore: | 84 mm | 88 mm | 79 mm |
| Wheel Drive: | All wheel drive (4x4) | Front wheel drive | Front wheel drive |
| Number of Gears (automatic transmission): | 6 | - | |
| Number of Gears (manual transmission): | 6 | 5 | |
| Length: | 4569 mm | 4845 mm | 4340 mm |
| Width: | 1853 mm | 1830 mm | 1710 mm |
| Height: | 1674 mm | 1455 mm | 1420 mm |
| Wheelbase: | 2795 mm | 2795 mm | 2605 mm |
| Front track: | 1524 mm | 1595 mm | 1460 mm |
| Rear (Back) track: | 1542 mm | 1595 mm | 1460 mm |
| Ride height(clearance): | 200 mm | ||
| Front overhang: | 965 mm | ||
| Rear overhang: | 1085 mm | ||
| Minimum volume of Luggage (trunk): | 500 l | 436 l | 427 l |
| Maximum amount of Luggage (trunk): | 1560 l | ||
| Front suspension: | Coil spring | Independent, Spring McPherson, with stabilizer | The depreciated rack |
| Rear suspension: | Helical spring | Independent, spring multi-link with stabilizer | The depreciated rack |
| Max weight: | 2265 kg | 2030 kg | 1680 kg |
| Front brakes: | Disc | Ventilated discs | Ventilated discs |
| Rear brakes: | Disc | Disc | Drum |
| Kerb Weight: | 1750 kg | 1462 kg | 1170 kg |
| ABS: | yes | yes | yes |
| Steering type: | Steering rack and pinion | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Hydraulic Steering | Hydraulic Steering | |
| Minimum turning circle (turning diameter): | 10.9 m | ||
| Tire size: | 235/55 R17 | 215/55 R17 | 185/65 R14 S |
| Wheel rims size: | 8.0J x 17 | 6.5J x 17 | R14 |