1991 BMW 518 vs. 2009 GMC Sierra
To start off, 2009 GMC Sierra is newer by 18 year(s). Which means there will be less support and parts availability for 1991 BMW 518. In addition, the cost of maintenance, including insurance, on 1991 BMW 518 would be higher. At 6,000 cc (8 cylinders), 2009 GMC Sierra is equipped with a bigger engine. In terms of performance, 2009 GMC Sierra (364 HP @ 5400 RPM) has 250 more horse power than 1991 BMW 518. (114 HP @ 5500 RPM) In normal driving conditions, 2009 GMC Sierra should accelerate faster than 1991 BMW 518. With that said, vehicle weight also plays an important factor in acceleration. 2009 GMC Sierra weights approximately 1499 kg more than 1991 BMW 518. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 1991 BMW 518. In wet, icy, snow, or gravel driving conditions, 2009 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, 2009 GMC Sierra (506 Nm @ 4400 RPM) has 341 more torque (in Nm) than 1991 BMW 518. (165 Nm @ 4250 RPM). This means 2009 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1991 BMW 518. 2009 GMC Sierra has automatic transmission and 1991 BMW 518 has manual transmission. 1991 BMW 518 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 GMC Sierra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1991 BMW 518 | 2009 GMC Sierra | |
| Make | BMW | GMC |
| Model | 518 | Sierra |
| Year Released | 1991 | 2009 |
| Body Type | Sedan | Pickup |
| Engine Position | Front | Front |
| Engine Size | 1766 cc | 6000 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 114 HP | 364 HP |
| Engine RPM | 5500 RPM | 5400 RPM |
| Torque | 165 Nm | 506 Nm |
| Torque RPM | 4250 RPM | 4400 RPM |
| Engine Compression Ratio | 8.8:1 | 10.2:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 3 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1160 kg | 2659 kg |
| Vehicle Length | 4730 mm | 5710 mm |
| Vehicle Width | 1760 mm | 2040 mm |
| Vehicle Height | 1420 mm | 1940 mm |
| Wheelbase Size | 2770 mm | 3380 mm |
