2004 Pontiac Bonneville vs. 2006 BMW Z4
To start off, 2006 BMW Z4 is newer by 2 year(s). Which means there will be less support and parts availability for 2004 Pontiac Bonneville. In addition, the cost of maintenance, including insurance, on 2004 Pontiac Bonneville would be higher. At 4,556 cc (8 cylinders), 2004 Pontiac Bonneville is equipped with a bigger engine. In terms of performance, 2004 Pontiac Bonneville (275 HP @ 5200 RPM) has 107 more horse power than 2006 BMW Z4. (168 HP @ 6250 RPM). In normal driving conditions, 2004 Pontiac Bonneville should accelerate faster than 2006 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2004 Pontiac Bonneville weights approximately 394 kg more than 2006 BMW Z4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 BMW Z4 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 2006 BMW Z4. However, in wet, icy, snow, or gravel driving conditions, 2004 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, 2004 Pontiac Bonneville (407 Nm) has 197 more torque (in Nm) than 2006 BMW Z4. (210 Nm). This means 2004 Pontiac Bonneville will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW Z4.
Compare all specifications:
| 2004 Pontiac Bonneville | 2006 BMW Z4 | |
| Make | Pontiac | BMW |
| Model | Bonneville | Z4 |
| Year Released | 2004 | 2006 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4556 cc | 2170 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 275 HP | 168 HP |
| Engine RPM | 5200 RPM | 6250 RPM |
| Torque | 407 Nm | 210 Nm |
| Engine Bore Size | 93 mm | 80 mm |
| Engine Stroke Size | 84 mm | 72 mm |
| Engine Compression Ratio | 10.0:1 | 10.8:1 |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1719 kg | 1325 kg |
| Vehicle Length | 5150 mm | 4100 mm |
| Vehicle Width | 1890 mm | 1790 mm |
| Vehicle Height | 1440 mm | 1310 mm |
| Wheelbase Size | 2810 mm | 2500 mm |
| Fuel Consumption Overall | 12.5 L/100km | 8.9 L/100km |
| Fuel Tank Capacity | 70 L | 55 L |
