2007 Cadillac STS vs. 2013 Kia Optima
To start off, 2013 Kia Optima is newer by 6 year(s). Which means there will be less support and parts availability for 2007 Cadillac STS. In addition, the cost of maintenance, including insurance, on 2007 Cadillac STS would be higher. At 4,565 cc (8 cylinders), 2007 Cadillac STS is equipped with a bigger engine. In terms of performance, 2007 Cadillac STS (320 HP @ 6400 RPM) has 123 more horse power than 2013 Kia Optima. (197 HP @ 6300 RPM). In normal driving conditions, 2007 Cadillac STS should accelerate faster than 2013 Kia Optima. With that said, vehicle weight also plays an important factor in acceleration. 2007 Cadillac STS weights approximately 184 kg more than 2013 Kia Optima. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Cadillac STS 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 2007 Cadillac STS. However, in wet, icy, snow, or gravel driving conditions, 2013 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, 2007 Cadillac STS (427 Nm @ 4400 RPM) has 175 more torque (in Nm) than 2013 Kia Optima. (252 Nm @ 4250 RPM). This means 2007 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2013 Kia Optima. 2007 Cadillac STS has automatic transmission and 2013 Kia Optima has manual transmission. 2013 Kia Optima will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Cadillac STS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Cadillac STS | 2013 Kia Optima | |
| Make | Cadillac | Kia |
| Model | STS | Optima |
| Year Released | 2007 | 2013 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4565 cc | 2400 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 320 HP | 197 HP |
| Engine RPM | 6400 RPM | 6300 RPM |
| Torque | 427 Nm | 252 Nm |
| Torque RPM | 4400 RPM | 4250 RPM |
| Engine Bore Size | 93 mm | 88 mm |
| Engine Stroke Size | 84 mm | 97 mm |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | 6-speed manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1638 kg | 1454 kg |
| Vehicle Length | 4990 mm | 4845 mm |
| Vehicle Width | 1850 mm | 1830 mm |
| Vehicle Height | 1470 mm | 1455 mm |
| Wheelbase Size | 2960 mm | 2795 mm |
| Fuel Consumption Highway | 8.7 L/100km | 5.7 L/100km |
| Fuel Consumption City | 13.8 L/100km | 8.7 L/100km |
| Fuel Tank Capacity | 64 L | 70 L |
