1981 BMW 520 vs. 2006 GMC Sierra
To start off, 2006 GMC Sierra is newer by 25 year(s). Which means there will be less support and parts availability for 1981 BMW 520. In addition, the cost of maintenance, including insurance, on 1981 BMW 520 would be higher. At 5,358 cc (8 cylinders), 2006 GMC Sierra is equipped with a bigger engine. In terms of performance, 2006 GMC Sierra (295 HP @ 5200 RPM) has 172 more horse power than 1981 BMW 520. (123 HP @ 5800 RPM) In normal driving conditions, 2006 GMC Sierra should accelerate faster than 1981 BMW 520.
Let's talk about torque, 2006 GMC Sierra (454 Nm @ 4000 RPM) has 284 more torque (in Nm) than 1981 BMW 520. (170 Nm @ 4000 RPM). This means 2006 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1981 BMW 520.
Compare all specifications:
| 1981 BMW 520 | 2006 GMC Sierra | |
| Make | BMW | GMC |
| Model | 520 | Sierra |
| Year Released | 1981 | 2006 |
| Body Type | Sedan | Pickup |
| Engine Position | Front | Front |
| Engine Size | 1991 cc | 5358 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 123 HP | 295 HP |
| Engine RPM | 5800 RPM | 5200 RPM |
| Torque | 170 Nm | 454 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Engine Bore Size | 80 mm | 96 mm |
| Engine Stroke Size | 66 mm | 92 mm |
| Engine Compression Ratio | 9.8:1 | 9.5:1 |
| Number of Seats | 5 seats | 6 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4630 mm | 5850 mm |
| Vehicle Width | 1710 mm | 2000 mm |
| Vehicle Height | 1430 mm | 1810 mm |
| Wheelbase Size | 2630 mm | 3650 mm |
| Fuel Tank Capacity | 70 L | 98 L |
