1991 Citroen XM vs. 2007 Hummer H3
To start off, 2007 Hummer H3 is newer by 16 year(s). Which means there will be less support and parts availability for 1991 Citroen XM. In addition, the cost of maintenance, including insurance, on 1991 Citroen XM 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 127 more horse power than 1991 Citroen XM. (115 HP @ 5750 RPM) In normal driving conditions, 2007 Hummer H3 should accelerate faster than 1991 Citroen XM.
Because 2007 Hummer H3 is four wheel drive (4WD), it will have significant more traction and grip than 1991 Citroen XM. 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 159 more torque (in Nm) than 1991 Citroen XM. (169 Nm @ 4250 RPM). This means 2007 Hummer H3 will have an easier job in driving up hills or pulling heavy equipment than 1991 Citroen XM.
Compare all specifications:
| 1991 Citroen XM | 2007 Hummer H3 | |
| Make | Citroen | Hummer |
| Model | XM | H3 |
| Year Released | 1991 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 1998 cc | 3699 cc |
| Engine Cylinders | 4 cylinders | 5 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 115 HP | 242 HP |
| Engine RPM | 5750 RPM | 5600 RPM |
| Torque | 169 Nm | 328 Nm |
| Torque RPM | 4250 RPM | 4600 RPM |
| Engine Bore Size | 86 mm | 95.5 mm |
| Engine Stroke Size | 86 mm | 101.6 mm |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Length | 4720 mm | 4750 mm |
| Vehicle Width | 1800 mm | 2180 mm |
| Vehicle Height | 1400 mm | 1900 mm |
| Wheelbase Size | 2760 mm | 2850 mm |
