2007 GMC Sierra vs. 1977 Holden GTS
To start off, 2007 GMC Sierra is newer by 30 year(s). Which means there will be less support and parts availability for 1977 Holden GTS. In addition, the cost of maintenance, including insurance, on 1977 Holden GTS would be higher. At 5,999 cc (8 cylinders), 2007 GMC Sierra is equipped with a bigger engine. In terms of performance, 2007 GMC Sierra (300 HP @ 4400 RPM) has 87 more horse power than 1977 Holden GTS. (213 HP @ 4800 RPM). In normal driving conditions, 2007 GMC Sierra should accelerate faster than 1977 Holden GTS.
Let's talk about torque, 2007 GMC Sierra (488 Nm @ 4000 RPM) has 88 more torque (in Nm) than 1977 Holden GTS. (400 Nm @ 3100 RPM). This means 2007 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1977 Holden GTS. 2007 GMC Sierra has automatic transmission and 1977 Holden GTS has manual transmission. 1977 Holden GTS will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 GMC Sierra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 GMC Sierra | 1977 Holden GTS | |
| Make | GMC | Holden |
| Model | Sierra | GTS |
| Year Released | 2007 | 1977 |
| Engine Position | Front | Front |
| Engine Size | 5999 cc | 5042 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Horse Power | 300 HP | 213 HP |
| Engine RPM | 4400 RPM | 4800 RPM |
| Torque | 488 Nm | 400 Nm |
| Torque RPM | 4000 RPM | 3100 RPM |
| Transmission Type | Automatic | Manual |
| Vehicle Length | 6570 mm | 4850 mm |
| Vehicle Width | 2450 mm | 1880 mm |
| Vehicle Height | 1970 mm | 1400 mm |
| Wheelbase Size | 4250 mm | 2830 mm |
