2007 GMC Sierra vs. 1966 Holden HD
To start off, 2007 GMC Sierra is newer by 41 year(s). Which means there will be less support and parts availability for 1966 Holden HD. In addition, the cost of maintenance, including insurance, on 1966 Holden HD would be higher. At 6,172 cc (8 cylinders), 2007 GMC Sierra is equipped with a bigger engine. In terms of performance, 2007 GMC Sierra (403 HP @ 5700 RPM) has 281 more horse power than 1966 Holden HD. (122 HP @ 4600 RPM). In normal driving conditions, 2007 GMC Sierra should accelerate faster than 1966 Holden HD. With that said, vehicle weight also plays an important factor in acceleration. 2007 GMC Sierra weights approximately 1278 kg more than 1966 Holden HD. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 1966 Holden HD. In wet, icy, snow, or gravel driving conditions, 2007 GMC Sierra 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 GMC Sierra (565 Nm @ 4300 RPM) has 328 more torque (in Nm) than 1966 Holden HD. (237 Nm @ 2200 RPM). This means 2007 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1966 Holden HD.
Compare all specifications:
| 2007 GMC Sierra | 1966 Holden HD | |
| Make | GMC | Holden |
| Model | Sierra | HD |
| Year Released | 2007 | 1966 |
| Engine Position | Front | Front |
| Engine Size | 6172 cc | 2930 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 403 HP | 122 HP |
| Engine RPM | 5700 RPM | 4600 RPM |
| Torque | 565 Nm | 237 Nm |
| Torque RPM | 4300 RPM | 2200 RPM |
| Drive Type | 4WD | Rear |
| Vehicle Weight | 2478 kg | 1200 kg |
| Vehicle Length | 5850 mm | 4580 mm |
| Vehicle Width | 2040 mm | 1790 mm |
| Vehicle Height | 1880 mm | 1510 mm |
| Wheelbase Size | 3650 mm | 2700 mm |
