1991 BMW 518 vs. 1991 Pontiac Bonneville
To start off, both 1991 BMW 518 and 1991 Pontiac Bonneville were released in the same year (1991). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 3,791 cc (6 cylinders), 1991 Pontiac Bonneville is equipped with a bigger engine. In terms of performance, 1991 Pontiac Bonneville (150 HP @ 4400 RPM) has 36 more horse power than 1991 BMW 518. (114 HP @ 5500 RPM) In normal driving conditions, 1991 Pontiac Bonneville should accelerate faster than 1991 BMW 518. With that said, vehicle weight also plays an important factor in acceleration. 1991 Pontiac Bonneville weights approximately 340 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 1991 BMW 518 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1991 BMW 518. However, in wet, icy, snow, or gravel driving conditions, 1991 Pontiac Bonneville, being front wheel drive (FWD), will offer much better control with better grip. 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, 1991 Pontiac Bonneville (271 Nm @ 2000 RPM) has 106 more torque (in Nm) than 1991 BMW 518. (165 Nm @ 4250 RPM). This means 1991 Pontiac Bonneville will have an easier job in driving up hills or pulling heavy equipment than 1991 BMW 518.
Compare all specifications:
| 1991 BMW 518 | 1991 Pontiac Bonneville | |
| Make | BMW | Pontiac |
| Model | 518 | Bonneville |
| Year Released | 1991 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 1766 cc | 3791 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 114 HP | 150 HP |
| Engine RPM | 5500 RPM | 4400 RPM |
| Torque | 165 Nm | 271 Nm |
| Torque RPM | 4250 RPM | 2000 RPM |
| Engine Bore Size | 84 mm | 96.6 mm |
| Engine Stroke Size | 81 mm | 86.4 mm |
| Engine Compression Ratio | 8.8:1 | 8.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1160 kg | 1500 kg |
| Vehicle Length | 4730 mm | 5050 mm |
| Vehicle Width | 1760 mm | 1850 mm |
| Vehicle Height | 1420 mm | 1420 mm |
| Wheelbase Size | 2770 mm | 2820 mm |
