2005 GMC Sierra vs. 1972 AC 428
To start off, 2005 GMC Sierra is newer by 33 year(s). Which means there will be less support and parts availability for 1972 AC 428. In addition, the cost of maintenance, including insurance, on 1972 AC 428 would be higher. At 7,003 cc (8 cylinders), 1972 AC 428 is equipped with a bigger engine. In terms of performance, 2005 GMC Sierra (321 HP @ 5000 RPM) has 23 more horse power than 1972 AC 428. (298 HP @ 4600 RPM). In normal driving conditions, 2005 GMC Sierra should accelerate faster than 1972 AC 428. With that said, vehicle weight also plays an important factor in acceleration. 2005 GMC Sierra weights approximately 836 kg more than 1972 AC 428. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 1972 AC 428. In wet, icy, snow, or gravel driving conditions, 2005 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, 1972 AC 428 (639 Nm @ 2800 RPM) has 269 more torque (in Nm) than 2005 GMC Sierra. (370 Nm @ 4000 RPM). This means 1972 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 2005 GMC Sierra.
Compare all specifications:
| 2005 GMC Sierra | 1972 AC 428 | |
| Make | GMC | AC |
| Model | Sierra | 428 |
| Year Released | 2005 | 1972 |
| Engine Position | Front | Front |
| Engine Size | 5965 cc | 7003 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Horse Power | 321 HP | 298 HP |
| Engine RPM | 5000 RPM | 4600 RPM |
| Torque | 370 Nm | 639 Nm |
| Torque RPM | 4000 RPM | 2800 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 6 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 2270 kg | 1434 kg |
| Vehicle Length | 5790 mm | 4430 mm |
| Vehicle Width | 2000 mm | 1710 mm |
| Vehicle Height | 1850 mm | 1310 mm |
| Wheelbase Size | 3650 mm | 2450 mm |
