1981 BMW 745 vs. 2004 GMC Sierra
To start off, 2004 GMC Sierra is newer by 23 year(s). Which means there will be less support and parts availability for 1981 BMW 745. In addition, the cost of maintenance, including insurance, on 1981 BMW 745 would be higher. At 5,359 cc (8 cylinders), 2004 GMC Sierra is equipped with a bigger engine. In terms of performance, 2004 GMC Sierra (295 HP) has 43 more horse power than 1981 BMW 745. (252 HP) In normal driving conditions, 2004 GMC Sierra should accelerate faster than 1981 BMW 745. With that said, vehicle weight also plays an important factor in acceleration. 2004 GMC Sierra weights approximately 783 kg more than 1981 BMW 745. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 1981 BMW 745. In wet, icy, snow, or gravel driving conditions, 2004 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, 2004 GMC Sierra (447 Nm) has 67 more torque (in Nm) than 1981 BMW 745. (380 Nm). This means 2004 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1981 BMW 745.
Compare all specifications:
| 1981 BMW 745 | 2004 GMC Sierra | |
| Make | BMW | GMC |
| Model | 745 | Sierra |
| Year Released | 1981 | 2004 |
| Body Type | Sedan | Pickup |
| Engine Position | Front | Front |
| Engine Size | 3430 cc | 5359 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 252 HP | 295 HP |
| Torque | 380 Nm | 447 Nm |
| Engine Bore Size | 92 mm | 96.1 mm |
| Engine Stroke Size | 86 mm | 92 mm |
| Engine Compression Ratio | 8.0:1 | 9.5:1 |
| Drive Type | Rear | 4WD |
| Number of Seats | 5 seats | 6 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1596 kg | 2379 kg |
| Vehicle Length | 4870 mm | 5850 mm |
| Vehicle Width | 1810 mm | 2000 mm |
| Vehicle Height | 1440 mm | 1910 mm |
| Wheelbase Size | 2770 mm | 3650 mm |
| Fuel Tank Capacity | 100 L | 98 L |
