1981 BMW 745 vs. 2012 GMC Sierra
To start off, 2012 GMC Sierra is newer by 31 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 6,000 cc (8 cylinders), 2012 GMC Sierra is equipped with a bigger engine. In terms of performance, 2012 GMC Sierra (353 HP @ 5400 RPM) has 101 more horse power than 1981 BMW 745. (252 HP @ 5200 RPM) In normal driving conditions, 2012 GMC Sierra should accelerate faster than 1981 BMW 745. With that said, vehicle weight also plays an important factor in acceleration. 2012 GMC Sierra weights approximately 1069 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 2012 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, 2012 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, 2012 GMC Sierra (506 Nm @ 4400 RPM) has 126 more torque (in Nm) than 1981 BMW 745. (380 Nm @ 2200 RPM). This means 2012 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1981 BMW 745. 2012 GMC Sierra has automatic transmission and 1981 BMW 745 has manual transmission. 1981 BMW 745 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2012 GMC Sierra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1981 BMW 745 | 2012 GMC Sierra | |
| Make | BMW | GMC |
| Model | 745 | Sierra |
| Year Released | 1981 | 2012 |
| Body Type | Sedan | Pickup |
| Engine Position | Front | Front |
| Engine Size | 3430 cc | 6000 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 252 HP | 353 HP |
| Engine RPM | 5200 RPM | 5400 RPM |
| Torque | 380 Nm | 506 Nm |
| Torque RPM | 2200 RPM | 4400 RPM |
| Engine Compression Ratio | 8.0:1 | 9.6:1 |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 3 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1590 kg | 2659 kg |
| Vehicle Length | 4870 mm | 5720 mm |
| Vehicle Width | 1810 mm | 2440 mm |
| Vehicle Height | 1440 mm | 1960 mm |
| Wheelbase Size | 2800 mm | 3380 mm |
| Fuel Tank Capacity | 100 L | 129 L |
