2007 Hummer H2 vs. 1978 Holden Sunbird
To start off, 2007 Hummer H2 is newer by 29 year(s). Which means there will be less support and parts availability for 1978 Holden Sunbird. In addition, the cost of maintenance, including insurance, on 1978 Holden Sunbird would be higher. At 5,999 cc (8 cylinders), 2007 Hummer H2 is equipped with a bigger engine. In terms of performance, 2007 Hummer H2 (325 HP @ 5200 RPM) has 229 more horse power than 1978 Holden Sunbird. (96 HP @ 5200 RPM). In normal driving conditions, 2007 Hummer H2 should accelerate faster than 1978 Holden Sunbird. With that said, vehicle weight also plays an important factor in acceleration. 2007 Hummer H2 weights approximately 1743 kg more than 1978 Holden Sunbird. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Hummer H2 is four wheel drive (4WD), it will have significant more traction and grip than 1978 Holden Sunbird. In wet, icy, snow, or gravel driving conditions, 2007 Hummer H2 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 H2 (496 Nm @ 4000 RPM) has 339 more torque (in Nm) than 1978 Holden Sunbird. (157 Nm @ 3600 RPM). This means 2007 Hummer H2 will have an easier job in driving up hills or pulling heavy equipment than 1978 Holden Sunbird.
Compare all specifications:
| 2007 Hummer H2 | 1978 Holden Sunbird | |
| Make | Hummer | Holden |
| Model | H2 | Sunbird |
| Year Released | 2007 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 5999 cc | 1897 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 325 HP | 96 HP |
| Engine RPM | 5200 RPM | 5200 RPM |
| Torque | 496 Nm | 157 Nm |
| Torque RPM | 4000 RPM | 3600 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Vehicle Weight | 2903 kg | 1160 kg |
| Vehicle Length | 4830 mm | 4500 mm |
| Vehicle Width | 2070 mm | 1710 mm |
| Vehicle Height | 2020 mm | 1340 mm |
| Wheelbase Size | 3130 mm | 2590 mm |
