2008 GMC Sierra vs. 1973 Avanti Avanti
To start off, 2008 GMC Sierra is newer by 35 year(s). Which means there will be less support and parts availability for 1973 Avanti Avanti. In addition, the cost of maintenance, including insurance, on 1973 Avanti Avanti would be higher. At 6,570 cc (8 cylinders), 1973 Avanti Avanti is equipped with a bigger engine. In terms of performance, 2008 GMC Sierra (353 HP @ 5400 RPM) has 176 more horse power than 1973 Avanti Avanti. (177 HP @ 3400 RPM). In normal driving conditions, 2008 GMC Sierra should accelerate faster than 1973 Avanti Avanti. With that said, vehicle weight also plays an important factor in acceleration. 2008 GMC Sierra weights approximately 1075 kg more than 1973 Avanti Avanti. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 1973 Avanti Avanti. In wet, icy, snow, or gravel driving conditions, 2008 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, 2008 GMC Sierra (506 Nm @ 4400 RPM) has 64 more torque (in Nm) than 1973 Avanti Avanti. (442 Nm @ 2000 RPM). This means 2008 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1973 Avanti Avanti.
Compare all specifications:
| 2008 GMC Sierra | 1973 Avanti Avanti | |
| Make | GMC | Avanti |
| Model | Sierra | Avanti |
| Year Released | 2008 | 1973 |
| Engine Size | 6000 cc | 6570 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Horse Power | 353 HP | 177 HP |
| Engine RPM | 5400 RPM | 3400 RPM |
| Torque | 506 Nm | 442 Nm |
| Torque RPM | 4400 RPM | 2000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Vehicle Weight | 2659 kg | 1584 kg |
| Vehicle Length | 5720 mm | 4910 mm |
| Vehicle Width | 2440 mm | 1800 mm |
| Vehicle Height | 1960 mm | 1380 mm |
| Wheelbase Size | 3380 mm | 2780 mm |
