2007 BMW X5 vs. 2003 Pontiac Bonneville
To start off, 2007 BMW X5 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Pontiac Bonneville. In addition, the cost of maintenance, including insurance, on 2003 Pontiac Bonneville would be higher. At 4,565 cc (8 cylinders), 2003 Pontiac Bonneville is equipped with a bigger engine. In terms of performance, 2003 Pontiac Bonneville (275 HP @ 5600 RPM) has 60 more horse power than 2007 BMW X5. (215 HP @ 4000 RPM) In normal driving conditions, 2003 Pontiac Bonneville should accelerate faster than 2007 BMW X5. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW X5 weights approximately 453 kg more than 2003 Pontiac Bonneville.
Because 2007 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 2003 Pontiac Bonneville. In wet, icy, snow, or gravel driving conditions, 2007 BMW X5 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, 2007 BMW X5 (500 Nm @ 2000 RPM) has 202 more torque (in Nm) than 2003 Pontiac Bonneville. (298 Nm @ 4000 RPM). This means 2007 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2003 Pontiac Bonneville. 2003 Pontiac Bonneville has automatic transmission and 2007 BMW X5 has manual transmission. 2007 BMW X5 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Pontiac Bonneville will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW X5 | 2003 Pontiac Bonneville | |
| Make | BMW | Pontiac |
| Model | X5 | Bonneville |
| Year Released | 2007 | 2003 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 4565 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 215 HP | 275 HP |
| Engine RPM | 4000 RPM | 5600 RPM |
| Torque | 500 Nm | 298 Nm |
| Torque RPM | 2000 RPM | 4000 RPM |
| Engine Bore Size | 84 mm | 93.1 mm |
| Engine Stroke Size | 90 mm | 84 mm |
| Engine Compression Ratio | 18.0:1 | 10.0:1 |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 2172 kg | 1719 kg |
| Vehicle Length | 4670 mm | 5150 mm |
| Vehicle Width | 1880 mm | 1890 mm |
| Vehicle Height | 1720 mm | 1440 mm |
| Wheelbase Size | 2830 mm | 2790 mm |
| Fuel Tank Capacity | 93 L | 70 L |
