2007 BMW Z4 vs. 2005 Opel Astra
To start off, 2007 BMW Z4 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Opel Astra. In addition, the cost of maintenance, including insurance, on 2005 Opel Astra would be higher. At 2,996 cc (6 cylinders), 2007 BMW Z4 is equipped with a bigger engine. In terms of performance, 2007 BMW Z4 (335 HP @ 7900 RPM) has 187 more horse power than 2005 Opel Astra. (148 HP @ 4000 RPM). In normal driving conditions, 2007 BMW Z4 should accelerate faster than 2005 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW Z4 weights approximately 110 kg more than 2005 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2005 Opel Astra, 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 Opel Astra (320 Nm @ 2000 RPM) has 5 more torque (in Nm) than 2007 BMW Z4. (315 Nm @ 2750 RPM). This means 2005 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW Z4. 2007 BMW Z4 has automatic transmission and 2005 Opel Astra has manual transmission. 2005 Opel Astra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 BMW Z4 will be easier to drive especially in heavy traffic.
Compare all specifications:
2007 BMW Z4 | 2005 Opel Astra | |
Make | BMW | Opel |
Model | Z4 | Astra |
Year Released | 2007 | 2005 |
Body Type | Convertible | Hatchback |
Engine Position | Front | Front |
Engine Size | 2996 cc | 1995 cc |
Engine Cylinders | 6 cylinders | 4 cylinders |
Engine Type | in-line | in-line |
Valves per Cylinder | 4 valves | 4 valves |
Horse Power | 335 HP | 148 HP |
Engine RPM | 7900 RPM | 4000 RPM |
Torque | 315 Nm | 320 Nm |
Torque RPM | 2750 RPM | 2000 RPM |
Engine Compression Ratio | 11.5:1 | 17.5:1 |
Fuel Type | Gasoline | Diesel |
Acceleration 0-100mph | 6.2 seconds | 8.9 seconds |
Drive Type | Rear | Front |
Transmission Type | Automatic | Manual |
Number of Seats | 2 seats | 5 seats |
Number of Doors | 2 doors | 3 doors |
Vehicle Weight | 1310 kg | 1200 kg |
Vehicle Length | 4100 mm | 4300 mm |
Vehicle Width | 1790 mm | 1800 mm |
Vehicle Height | 1310 mm | 1440 mm |
Wheelbase Size | 2500 mm | 2400 mm |
Fuel Consumption Overall | 9.5 L/100km | 5.8 L/100km |
Fuel Tank Capacity | 55 L | 52 L |