2012 GMC Sierra vs. 1978 Avanti Avanti
To start off, 2012 GMC Sierra is newer by 34 year(s). Which means there will be less support and parts availability for 1978 Avanti Avanti. In addition, the cost of maintenance, including insurance, on 1978 Avanti Avanti would be higher. At 6,568 cc (8 cylinders), 1978 Avanti Avanti is equipped with a bigger engine. In terms of performance, 2012 GMC Sierra (403 HP @ 5700 RPM) has 226 more horse power than 1978 Avanti Avanti. (177 HP @ 3400 RPM). In normal driving conditions, 2012 GMC Sierra should accelerate faster than 1978 Avanti Avanti. With that said, vehicle weight also plays an important factor in acceleration. 2012 GMC Sierra weights approximately 772 kg more than 1978 Avanti Avanti. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 2012 GMC Sierra (565 Nm @ 4300 RPM) has 123 more torque (in Nm) than 1978 Avanti Avanti. (442 Nm @ 2000 RPM). This means 2012 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1978 Avanti Avanti.
Compare all specifications:
| 2012 GMC Sierra | 1978 Avanti Avanti | |
| Make | GMC | Avanti |
| Model | Sierra | Avanti |
| Year Released | 2012 | 1978 |
| Engine Size | 6200 cc | 6568 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Horse Power | 403 HP | 177 HP |
| Engine RPM | 5700 RPM | 3400 RPM |
| Torque | 565 Nm | 442 Nm |
| Torque RPM | 4300 RPM | 2000 RPM |
| Fuel Type | Flex Fuel | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | 6-speed shiftable automatic | Automatic |
| Vehicle Weight | 2352 kg | 1580 kg |
| Vehicle Length | 5839 mm | 4910 mm |
| Vehicle Width | 2032 mm | 1800 mm |
| Vehicle Height | 1875 mm | 1380 mm |
| Wheelbase Size | 3645 mm | 2780 mm |
