2003 Cadillac CTS vs. 2007 Hummer H3
To start off, 2007 Hummer H3 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 3,699 cc (5 cylinders), 2007 Hummer H3 is equipped with a bigger engine. In terms of performance, 2007 Hummer H3 (242 HP @ 5600 RPM) has 63 more horse power than 2003 Cadillac CTS. (179 HP @ 6000 RPM) In normal driving conditions, 2007 Hummer H3 should accelerate faster than 2003 Cadillac CTS.
Because 2007 Hummer H3 is four wheel drive (4WD), it will have significant more traction and grip than 2003 Cadillac CTS. In wet, icy, snow, or gravel driving conditions, 2007 Hummer H3 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, 2007 Hummer H3 (328 Nm @ 4600 RPM) has 83 more torque (in Nm) than 2003 Cadillac CTS. (245 Nm @ 3400 RPM). This means 2007 Hummer H3 will have an easier job in driving up hills or pulling heavy equipment than 2003 Cadillac CTS.
Compare all specifications:
| 2003 Cadillac CTS | 2007 Hummer H3 | |
| Make | Cadillac | Hummer |
| Model | CTS | H3 |
| Year Released | 2003 | 2007 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 2597 cc | 3699 cc |
| Engine Cylinders | 6 cylinders | 5 cylinders |
| Engine Type | V | in-line |
| Horse Power | 179 HP | 242 HP |
| Engine RPM | 6000 RPM | 5600 RPM |
| Torque | 245 Nm | 328 Nm |
| Torque RPM | 3400 RPM | 4600 RPM |
| Engine Bore Size | 83.3 mm | 95.5 mm |
| Engine Stroke Size | 79.6 mm | 101.6 mm |
| Engine Compression Ratio | 10.2:1 | 10.0:1 |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4840 mm | 4750 mm |
| Vehicle Width | 1800 mm | 2180 mm |
| Vehicle Height | 1450 mm | 1900 mm |
| Wheelbase Size | 2890 mm | 2850 mm |
