2009 BMW Z4 vs. 2007 Fiat Siena
To start off, 2009 BMW Z4 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Fiat Siena. In addition, the cost of maintenance, including insurance, on 2007 Fiat Siena would be higher. At 2,494 cc (6 cylinders), 2009 BMW Z4 is equipped with a bigger engine. In terms of performance, 2009 BMW Z4 (215 HP @ 6500 RPM) has 115 more horse power than 2007 Fiat Siena. (100 HP @ 5500 RPM). In normal driving conditions, 2009 BMW Z4 should accelerate faster than 2007 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW Z4 weights approximately 220 kg more than 2007 Fiat Siena. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 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 2009 BMW Z4. However, in wet, icy, snow, or gravel driving conditions, 2007 Fiat Siena, 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, 2009 BMW Z4 (250 Nm @ 2000 RPM) has 110 more torque (in Nm) than 2007 Fiat Siena. (140 Nm @ 4000 RPM). This means 2009 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2007 Fiat Siena. 2009 BMW Z4 has automatic transmission and 2007 Fiat Siena has manual transmission. 2007 Fiat Siena will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 BMW Z4 will be easier to drive especially in heavy traffic.
Compare all specifications:
2009 BMW Z4 | 2007 Fiat Siena | |
Make | BMW | Fiat |
Model | Z4 | Siena |
Year Released | 2009 | 2007 |
Body Type | Convertible | Sedan |
Engine Position | Front | Front |
Engine Size | 2494 cc | 1581 cc |
Engine Cylinders | 6 cylinders | 4 cylinders |
Engine Type | in-line | in-line |
Valves per Cylinder | 4 valves | 4 valves |
Horse Power | 215 HP | 100 HP |
Engine RPM | 6500 RPM | 5500 RPM |
Torque | 250 Nm | 140 Nm |
Torque RPM | 2000 RPM | 4000 RPM |
Engine Compression Ratio | 10.5:1 | 9.5:1 |
Fuel Type | Gasoline | Gasoline |
Top Speed | 227 km/hour | 179 km/hour |
Acceleration 0-100mph | 7.5 seconds | 11.5 seconds |
Drive Type | Rear | Front |
Transmission Type | Automatic | Manual |
Number of Seats | 2 seats | 5 seats |
Number of Doors | 2 doors | 4 doors |
Vehicle Weight | 1290 kg | 1070 kg |
Vehicle Width | 1790 mm | 1640 mm |
Wheelbase Size | 2500 mm | 2380 mm |
Fuel Consumption Overall | 9.7 L/100km | 8.2 L/100km |
Fuel Tank Capacity | 55 L | 54 L |