2003 GMC Envoy vs. 1977 Holden Sunbird
To start off, 2003 GMC Envoy is newer by 26 year(s). Which means there will be less support and parts availability for 1977 Holden Sunbird. In addition, the cost of maintenance, including insurance, on 1977 Holden Sunbird would be higher. At 4,158 cc (6 cylinders), 2003 GMC Envoy is equipped with a bigger engine. In terms of performance, 2003 GMC Envoy (271 HP @ 6000 RPM) has 175 more horse power than 1977 Holden Sunbird. (96 HP @ 5200 RPM). In normal driving conditions, 2003 GMC Envoy should accelerate faster than 1977 Holden Sunbird. With that said, vehicle weight also plays an important factor in acceleration. 2003 GMC Envoy weights approximately 850 kg more than 1977 Holden Sunbird. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 GMC Envoy is four wheel drive (4WD), it will have significant more traction and grip than 1977 Holden Sunbird. In wet, icy, snow, or gravel driving conditions, 2003 GMC Envoy 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, 2003 GMC Envoy (373 Nm @ 3600 RPM) has 216 more torque (in Nm) than 1977 Holden Sunbird. (157 Nm @ 3600 RPM). This means 2003 GMC Envoy will have an easier job in driving up hills or pulling heavy equipment than 1977 Holden Sunbird. 2003 GMC Envoy has automatic transmission and 1977 Holden Sunbird has manual transmission. 1977 Holden Sunbird will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 GMC Envoy will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 GMC Envoy | 1977 Holden Sunbird | |
| Make | GMC | Holden |
| Model | Envoy | Sunbird |
| Year Released | 2003 | 1977 |
| Engine Position | Front | Front |
| Engine Size | 4158 cc | 1897 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 271 HP | 96 HP |
| Engine RPM | 6000 RPM | 5200 RPM |
| Torque | 373 Nm | 157 Nm |
| Torque RPM | 3600 RPM | 3600 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Vehicle Weight | 2010 kg | 1160 kg |
| Vehicle Length | 4870 mm | 4500 mm |
| Vehicle Width | 1840 mm | 1710 mm |
| Vehicle Height | 1780 mm | 1340 mm |
| Wheelbase Size | 2880 mm | 2590 mm |
