2005 Kia Optima vs. 2013 Cadillac XTS
To start off, 2013 Cadillac XTS is newer by 8 year(s). Which means there will be less support and parts availability for 2005 Kia Optima. In addition, the cost of maintenance, including insurance, on 2005 Kia Optima would be higher. At 3,564 cc (6 cylinders), 2013 Cadillac XTS is equipped with a bigger engine. In terms of performance, 2013 Cadillac XTS (314 HP @ 6800 RPM) has 176 more horse power than 2005 Kia Optima. (138 HP @ 4000 RPM) In normal driving conditions, 2013 Cadillac XTS should accelerate faster than 2005 Kia Optima. With that said, vehicle weight also plays an important factor in acceleration. 2013 Cadillac XTS weights approximately 415 kg more than 2005 Kia Optima. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2013 Cadillac XTS is all wheel drive (AWD), it will have significant more traction and grip than 2005 Kia Optima. In wet, icy, snow, or gravel driving conditions, 2013 Cadillac XTS will offer significantly more control. 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 Cadillac XTS (358 Nm) has 159 more torque (in Nm) than 2005 Kia Optima. (199 Nm). This means 2013 Cadillac XTS will have an easier job in driving up hills or pulling heavy equipment than 2005 Kia Optima.
Compare all specifications:
| 2005 Kia Optima | 2013 Cadillac XTS | |
| Make | Kia | Cadillac |
| Model | Optima | XTS |
| Year Released | 2005 | 2013 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2360 cc | 3564 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 138 HP | 314 HP |
| Engine RPM | 4000 RPM | 6800 RPM |
| Torque | 199 Nm | 358 Nm |
| Engine Bore Size | 87.1 mm | 94 mm |
| Engine Stroke Size | 100 mm | 86 mm |
| Engine Compression Ratio | 10.0:1 | 11.5 |
| Drive Type | Front | AWD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1497 kg | 1912 kg |
| Vehicle Length | 4730 mm | 5131 mm |
| Vehicle Width | 1820 mm | 1852 mm |
| Vehicle Height | 1420 mm | 1510 mm |
| Wheelbase Size | 2620 mm | 2831 mm |
| Fuel Consumption | 7.8 L/100km | 9 L/100km |
| Fuel Consumption City | 10.7 L/100km | 13.8 L/100km |
| Fuel Consumption Overall | 9.4 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 65 L | 76 L |
