2004 Kia Optima vs. 2013 BMW 7 Series
To start off, 2013 BMW 7 Series is newer by 9 year(s). Which means there will be less support and parts availability for 2004 Kia Optima. In addition, the cost of maintenance, including insurance, on 2004 Kia Optima would be higher. At 2,979 cc (6 cylinders), 2013 BMW 7 Series is equipped with a bigger engine. In terms of performance, 2013 BMW 7 Series (311 HP @ 5800 RPM) has 174 more horse power than 2004 Kia Optima. (137 HP @ 4000 RPM) In normal driving conditions, 2013 BMW 7 Series should accelerate faster than 2004 Kia Optima. With that said, vehicle weight also plays an important factor in acceleration. 2013 BMW 7 Series weights approximately 485 kg more than 2004 Kia Optima. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2013 BMW 7 Series is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2013 BMW 7 Series. However, in wet, icy, snow, or gravel driving conditions, 2004 Kia Optima, being front wheel drive (FWD), will offer much better control with better grip. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2013 BMW 7 Series (447 Nm) has 248 more torque (in Nm) than 2004 Kia Optima. (199 Nm). This means 2013 BMW 7 Series will have an easier job in driving up hills or pulling heavy equipment than 2004 Kia Optima.
Compare all specifications:
| 2004 Kia Optima | 2013 BMW 7 Series | |
| Make | Kia | BMW |
| Model | Optima | 7 Series |
| Year Released | 2004 | 2013 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2360 cc | 2979 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 137 HP | 311 HP |
| Engine RPM | 4000 RPM | 5800 RPM |
| Torque | 199 Nm | 447 Nm |
| Engine Bore Size | 87.1 mm | 84 mm |
| Engine Stroke Size | 100 mm | 89 mm |
| Engine Compression Ratio | 10.0:1 | 10.2 :1 |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1488 kg | 1973 kg |
| Vehicle Length | 4730 mm | 5214 mm |
| Vehicle Width | 1820 mm | 2134 mm |
| Vehicle Height | 1420 mm | 1481 mm |
| Wheelbase Size | 2710 mm | 3210 mm |
| Fuel Consumption Highway | 7.8 L/100km | 7.5 L/100km |
| Fuel Consumption City | 10.2 L/100km | 11 L/100km |
| Fuel Tank Capacity | 65 L | 80 L |
