1991 BMW 518 vs. 2005 Pontiac Bonneville
To start off, 2005 Pontiac Bonneville is newer by 14 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 3,786 cc (6 cylinders), 2005 Pontiac Bonneville is equipped with a bigger engine. In terms of performance, 2005 Pontiac Bonneville (205 HP @ 5200 RPM) has 91 more horse power than 1991 BMW 518. (114 HP @ 5500 RPM) In normal driving conditions, 2005 Pontiac Bonneville should accelerate faster than 1991 BMW 518. With that said, vehicle weight also plays an important factor in acceleration. 2005 Pontiac Bonneville weights approximately 488 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, 2005 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, 2005 Pontiac Bonneville (312 Nm) has 147 more torque (in Nm) than 1991 BMW 518. (165 Nm). This means 2005 Pontiac Bonneville will have an easier job in driving up hills or pulling heavy equipment than 1991 BMW 518. 2005 Pontiac Bonneville 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. 2005 Pontiac Bonneville will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1991 BMW 518 | 2005 Pontiac Bonneville | |
| Make | BMW | Pontiac |
| Model | 518 | Bonneville |
| Year Released | 1991 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1766 cc | 3786 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 114 HP | 205 HP |
| Engine RPM | 5500 RPM | 5200 RPM |
| Torque | 165 Nm | 312 Nm |
| Engine Bore Size | 84 mm | 97.1 mm |
| Engine Stroke Size | 81 mm | 86 mm |
| Engine Compression Ratio | 8.8:1 | 9.4:1 |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1160 kg | 1648 kg |
| Vehicle Length | 4730 mm | 5150 mm |
| Vehicle Width | 1760 mm | 1890 mm |
| Vehicle Height | 1420 mm | 1440 mm |
| Wheelbase Size | 2770 mm | 2800 mm |
