2005 Cadillac STS vs. 2003 Cadillac Seville
To start off, 2005 Cadillac STS is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Cadillac Seville. In addition, the cost of maintenance, including insurance, on 2003 Cadillac Seville would be higher. At 4,565 cc (8 cylinders), 2003 Cadillac Seville is equipped with a bigger engine. In terms of performance, 2003 Cadillac Seville (300 HP @ 6000 RPM) has 48 more horse power than 2005 Cadillac STS. (252 HP @ 6500 RPM) In normal driving conditions, 2003 Cadillac Seville should accelerate faster than 2005 Cadillac STS. With that said, vehicle weight also plays an important factor in acceleration. 2003 Cadillac Seville weights approximately 16 kg more than 2005 Cadillac STS. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 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 2005 Cadillac STS. However, in wet, icy, snow, or gravel driving conditions, 2003 Cadillac Seville, 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, 2003 Cadillac Seville (407 Nm @ 4500 RPM) has 65 more torque (in Nm) than 2005 Cadillac STS. (342 Nm @ 3200 RPM). This means 2003 Cadillac Seville will have an easier job in driving up hills or pulling heavy equipment than 2005 Cadillac STS.
Compare all specifications:
| 2005 Cadillac STS | 2003 Cadillac Seville | |
| Make | Cadillac | Cadillac |
| Model | STS | Seville |
| Year Released | 2005 | 2003 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3562 cc | 4565 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 252 HP | 300 HP |
| Engine RPM | 6500 RPM | 6000 RPM |
| Torque | 342 Nm | 407 Nm |
| Torque RPM | 3200 RPM | 4500 RPM |
| Engine Bore Size | 94 mm | 93 mm |
| Engine Stroke Size | 86 mm | 84 mm |
| Engine Compression Ratio | 10.2:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1790 kg | 1806 kg |
| Vehicle Length | 4990 mm | 5110 mm |
| Vehicle Width | 1850 mm | 1910 mm |
| Vehicle Height | 1470 mm | 1420 mm |
| Wheelbase Size | 2690 mm | 2890 mm |
| Fuel Consumption Overall | 12.4 L/100km | 15.7 L/100km |
| Fuel Tank Capacity | 95 L | 70 L |
