2003 Cadillac CTS vs. 2007 Cadillac STS
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 CTS. In addition, the cost of maintenance, including insurance, on 2003 Cadillac CTS would be higher. At 3,563 cc (6 cylinders), 2003 Cadillac CTS is equipped with a bigger engine. In terms of performance, 2007 Cadillac STS (255 HP @ 6500 RPM) has 3 more horse power than 2003 Cadillac CTS. (252 HP @ 6200 RPM) In normal driving conditions, 2007 Cadillac STS should accelerate faster than 2003 Cadillac CTS.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front 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, 2003 Cadillac CTS (346 Nm @ 3200 RPM) has 4 more torque (in Nm) than 2007 Cadillac STS. (342 Nm @ 3200 RPM). This means 2003 Cadillac CTS will have an easier job in driving up hills or pulling heavy equipment than 2007 Cadillac STS. 2007 Cadillac STS has automatic transmission and 2003 Cadillac CTS has manual transmission. 2003 Cadillac CTS 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:
| 2003 Cadillac CTS | 2007 Cadillac STS | |
| Make | Cadillac | Cadillac |
| Model | CTS | STS |
| Year Released | 2003 | 2007 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3563 cc | 3556 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 252 HP | 255 HP |
| Engine RPM | 6200 RPM | 6500 RPM |
| Torque | 346 Nm | 342 Nm |
| Torque RPM | 3200 RPM | 3200 RPM |
| Engine Bore Size | 94 mm | 94 mm |
| Engine Stroke Size | 86 mm | 86 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4840 mm | 4990 mm |
| Vehicle Width | 1800 mm | 1850 mm |
| Vehicle Height | 1450 mm | 1470 mm |
| Wheelbase Size | 2890 mm | 2960 mm |
| Fuel Tank Capacity | 64 L | 64 L |
