2009 Kia Optima vs. 2004 Rover 75
To start off, 2009 Kia Optima is newer by 5 year(s). Which means there will be less support and parts availability for 2004 Rover 75. In addition, the cost of maintenance, including insurance, on 2004 Rover 75 would be higher. At 2,656 cc (6 cylinders), 2009 Kia Optima is equipped with a bigger engine. In terms of performance, 2009 Kia Optima (194 HP @ 6000 RPM) has 72 more horse power than 2004 Rover 75. (122 HP @ 5500 RPM). In normal driving conditions, 2009 Kia Optima should accelerate faster than 2004 Rover 75. With that said, vehicle weight also plays an important factor in acceleration. 2009 Kia Optima weights approximately 44 kg more than 2004 Rover 75. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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, 2009 Kia Optima (250 Nm @ 4500 RPM) has 90 more torque (in Nm) than 2004 Rover 75. (160 Nm @ 4000 RPM). This means 2009 Kia Optima will have an easier job in driving up hills or pulling heavy equipment than 2004 Rover 75. 2009 Kia Optima has automatic transmission and 2004 Rover 75 has manual transmission. 2004 Rover 75 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Kia Optima will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Kia Optima | 2004 Rover 75 | |
| Make | Kia | Rover |
| Model | Optima | 75 |
| Year Released | 2009 | 2004 |
| Engine Position | Front | Front |
| Engine Size | 2656 cc | 1796 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 194 HP | 122 HP |
| Engine RPM | 6000 RPM | 5500 RPM |
| Torque | 250 Nm | 160 Nm |
| Torque RPM | 4500 RPM | 4000 RPM |
| Engine Bore Size | 86.7 mm | 80 mm |
| Engine Stroke Size | 75 mm | 89.3 mm |
| Engine Compression Ratio | 10.4:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1519 kg | 1475 kg |
| Vehicle Length | 4810 mm | 4800 mm |
| Vehicle Width | 1810 mm | 1780 mm |
| Vehicle Height | 1490 mm | 1430 mm |
| Wheelbase Size | 2730 mm | 2830 mm |
| Fuel Tank Capacity | 62 L | 65 L |
