1981 Alfa Romeo Alfa 6 vs. 2013 GMC Sierra
To start off, 2013 GMC Sierra is newer by 32 year(s). Which means there will be less support and parts availability for 1981 Alfa Romeo Alfa 6. In addition, the cost of maintenance, including insurance, on 1981 Alfa Romeo Alfa 6 would be higher. At 6,000 cc (8 cylinders), 2013 GMC Sierra is equipped with a bigger engine. In terms of performance, 2013 GMC Sierra (327 HP @ 5100 RPM) has 223 more horse power than 1981 Alfa Romeo Alfa 6. (104 HP @ 4300 RPM) In normal driving conditions, 2013 GMC Sierra should accelerate faster than 1981 Alfa Romeo Alfa 6. With that said, vehicle weight also plays an important factor in acceleration. 2013 GMC Sierra weights approximately 1047 kg more than 1981 Alfa Romeo Alfa 6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2013 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 1981 Alfa Romeo Alfa 6. In wet, icy, snow, or gravel driving conditions, 2013 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, 2013 GMC Sierra (498 Nm @ 4100 RPM) has 292 more torque (in Nm) than 1981 Alfa Romeo Alfa 6. (206 Nm @ 2400 RPM). This means 2013 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1981 Alfa Romeo Alfa 6.
Compare all specifications:
| 1981 Alfa Romeo Alfa 6 | 2013 GMC Sierra | |
| Make | Alfa Romeo | GMC |
| Model | Alfa 6 | Sierra |
| Year Released | 1981 | 2013 |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 6000 cc |
| Engine Cylinders | 5 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 104 HP | 327 HP |
| Engine RPM | 4300 RPM | 5100 RPM |
| Torque | 206 Nm | 498 Nm |
| Torque RPM | 2400 RPM | 4100 RPM |
| Engine Bore Size | 88 mm | 101 mm |
| Engine Stroke Size | 82 mm | 92 mm |
| Fuel Type | Diesel | Flex Fuel |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | CVT |
| Number of Seats | 5 seats | 6 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1580 kg | 2627 kg |
| Vehicle Length | 4690 mm | 5847 mm |
| Vehicle Width | 1690 mm | 2032 mm |
| Vehicle Height | 1430 mm | 1872 mm |
| Wheelbase Size | 2610 mm | 3645 mm |
| Fuel Tank Capacity | 50 L | 98 L |
