2006 BMW Z4 vs. 2005 Buick Park Avenue
To start off, 2006 BMW Z4 is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Buick Park Avenue. In addition, the cost of maintenance, including insurance, on 2005 Buick Park Avenue would be higher. At 3,785 cc (6 cylinders), 2005 Buick Park Avenue is equipped with a bigger engine. In terms of performance, 2005 Buick Park Avenue (242 HP @ 5200 RPM) has 53 more horse power than 2006 BMW Z4. (189 HP @ 6000 RPM) In normal driving conditions, 2005 Buick Park Avenue should accelerate faster than 2006 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Buick Park Avenue weights approximately 427 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, 2005 Buick Park Avenue, 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 Buick Park Avenue (380 Nm @ 3600 RPM) has 135 more torque (in Nm) than 2006 BMW Z4. (245 Nm @ 3500 RPM). This means 2005 Buick Park Avenue will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW Z4. 2005 Buick Park Avenue has automatic transmission and 2006 BMW Z4 has manual transmission. 2006 BMW Z4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Buick Park Avenue will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 BMW Z4 | 2005 Buick Park Avenue | |
| Make | BMW | Buick |
| Model | Z4 | Park Avenue |
| Year Released | 2006 | 2005 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 3785 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 189 HP | 242 HP |
| Engine RPM | 6000 RPM | 5200 RPM |
| Torque | 245 Nm | 380 Nm |
| Torque RPM | 3500 RPM | 3600 RPM |
| Engine Bore Size | 84 mm | 97 mm |
| Engine Stroke Size | 75 mm | 86 mm |
| Engine Compression Ratio | 11.0:1 | 8.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 6 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1335 kg | 1762 kg |
| Vehicle Length | 4100 mm | 5260 mm |
| Vehicle Width | 1790 mm | 1900 mm |
| Vehicle Height | 1310 mm | 1460 mm |
| Wheelbase Size | 2500 mm | 2900 mm |
| Fuel Consumption Overall | 9 L/100km | 10.7 L/100km |
| Fuel Tank Capacity | 55 L | 68 L |
