2007 Chevrolet HHR vs. 1999 Opel Signum
To start off, 2007 Chevrolet HHR is newer by 8 year(s). Which means there will be less support and parts availability for 1999 Opel Signum. In addition, the cost of maintenance, including insurance, on 1999 Opel Signum would be higher. At 2,397 cc (4 cylinders), 2007 Chevrolet HHR is equipped with a bigger engine. In terms of performance, 2007 Chevrolet HHR (175 HP @ 6200 RPM) has 76 more horse power than 1999 Opel Signum. (99 HP @ 3120 RPM). In normal driving conditions, 2007 Chevrolet HHR should accelerate faster than 1999 Opel Signum.
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, 1999 Opel Signum (240 Nm @ 1500 RPM) has 16 more torque (in Nm) than 2007 Chevrolet HHR. (224 Nm @ 5000 RPM). This means 1999 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2007 Chevrolet HHR. 2007 Chevrolet HHR has automatic transmission and 1999 Opel Signum has manual transmission. 1999 Opel Signum will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Chevrolet HHR will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Chevrolet HHR | 1999 Opel Signum | |
| Make | Chevrolet | Opel |
| Model | HHR | Signum |
| Year Released | 2007 | 1999 |
| Body Type | Hatchback | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2397 cc | 1995 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 175 HP | 99 HP |
| Engine RPM | 6200 RPM | 3120 RPM |
| Torque | 224 Nm | 240 Nm |
| Torque RPM | 5000 RPM | 1500 RPM |
| Engine Bore Size | 87.9 mm | 84 mm |
| Engine Stroke Size | 97.8 mm | 90 mm |
| Engine Compression Ratio | 10.5:1 | 18.5:1 |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Vehicle Length | 4440 mm | 4640 mm |
| Vehicle Width | 1740 mm | 1800 mm |
| Vehicle Height | 1570 mm | 1470 mm |
| Wheelbase Size | 2630 mm | 2840 mm |
