2007 BMW Z4 vs. 1999 Pontiac Bonneville
To start off, 2007 BMW Z4 is newer by 8 year(s). Which means there will be less support and parts availability for 1999 Pontiac Bonneville. In addition, the cost of maintenance, including insurance, on 1999 Pontiac Bonneville would be higher. At 3,791 cc (6 cylinders), 1999 Pontiac Bonneville is equipped with a bigger engine. In terms of performance, 2007 BMW Z4 (338 HP @ 7900 RPM) has 98 more horse power than 1999 Pontiac Bonneville. (240 HP @ 5200 RPM). In normal driving conditions, 2007 BMW Z4 should accelerate faster than 1999 Pontiac Bonneville. With that said, vehicle weight also plays an important factor in acceleration. 1999 Pontiac Bonneville weights approximately 262 kg more than 2007 BMW Z4.
Because 2007 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 2007 BMW Z4. However, in wet, icy, snow, or gravel driving conditions, 1999 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, 1999 Pontiac Bonneville (380 Nm @ 3600 RPM) has 15 more torque (in Nm) than 2007 BMW Z4. (365 Nm @ 4900 RPM). This means 1999 Pontiac Bonneville will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW Z4. 1999 Pontiac Bonneville has automatic transmission and 2007 BMW Z4 has manual transmission. 2007 BMW Z4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1999 Pontiac Bonneville will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW Z4 | 1999 Pontiac Bonneville | |
| Make | BMW | Pontiac |
| Model | Z4 | Bonneville |
| Year Released | 2007 | 1999 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3246 cc | 3791 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 338 HP | 240 HP |
| Engine RPM | 7900 RPM | 5200 RPM |
| Torque | 365 Nm | 380 Nm |
| Torque RPM | 4900 RPM | 3600 RPM |
| Engine Bore Size | 87 mm | 96.5 mm |
| Engine Stroke Size | 91 mm | 86.4 mm |
| Engine Compression Ratio | 11.5:1 | 9.0:1 |
| Top Speed | 250 km/hour | 203 km/hour |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1485 kg | 1747 kg |
| Vehicle Length | 4120 mm | 5150 mm |
| Vehicle Width | 1790 mm | 1890 mm |
| Vehicle Height | 1310 mm | 1440 mm |
| Wheelbase Size | 2500 mm | 2810 mm |
| Fuel Tank Capacity | 55 L | 70 L |
