2007 Cadillac STS vs. 2003 Cadillac Seville
To start off, 2007 Cadillac STS is newer by 4 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. Both 2007 Cadillac STS and 2003 Cadillac Seville are equipped with a 4,565 cc engine. In terms of performance, 2007 Cadillac STS (321 HP @ 6400 RPM) has 21 more horse power than 2003 Cadillac Seville. (300 HP @ 6000 RPM). In normal driving conditions, 2007 Cadillac STS should accelerate faster than 2003 Cadillac Seville. With that said, vehicle weight also plays an important factor in acceleration. 2003 Cadillac Seville weights approximately 171 kg more than 2007 Cadillac STS.
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, 2007 Cadillac STS (427 Nm @ 4400 RPM) has 20 more torque (in Nm) than 2003 Cadillac Seville. (407 Nm @ 4500 RPM). This means 2007 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2003 Cadillac Seville.
Compare all specifications:
| 2007 Cadillac STS | 2003 Cadillac Seville | |
| Make | Cadillac | Cadillac |
| Model | STS | Seville |
| Year Released | 2007 | 2003 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4565 cc | 4565 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 321 HP | 300 HP |
| Engine RPM | 6400 RPM | 6000 RPM |
| Torque | 427 Nm | 407 Nm |
| Torque RPM | 4400 RPM | 4500 RPM |
| Engine Bore Size | 93 mm | 93 mm |
| Engine Stroke Size | 84 mm | 84 mm |
| Engine Compression Ratio | 10.5:1 | 10.5:1 |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1635 kg | 1806 kg |
| Vehicle Length | 4990 mm | 5110 mm |
| Vehicle Width | 1850 mm | 1910 mm |
| Vehicle Height | 1470 mm | 1420 mm |
| Wheelbase Size | 2960 mm | 2890 mm |
| Fuel Consumption Overall | 11.8 L/100km | 15.7 L/100km |
| Fuel Tank Capacity | 64 L | 70 L |
