2011 BMW Z4 vs. 2011 Fiat Siena
To start off, both 2011 BMW Z4 and 2011 Fiat Siena were released in the same year (2011). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 3,000 cc (6 cylinders), 2011 BMW Z4 is equipped with a bigger engine. With that said, vehicle weight also plays an important factor in acceleration. 2011 BMW Z4 weights approximately 500 kg more than 2011 Fiat Siena.
Because 2011 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 2011 BMW Z4. However, in wet, icy, snow, or gravel driving conditions, 2011 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, 2011 BMW Z4 (406 Nm @ 1400 RPM) has 271 more torque (in Nm) than 2011 Fiat Siena. (135 Nm @ 2500 RPM). This means 2011 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2011 Fiat Siena.
Compare all specifications:
| 2011 BMW Z4 | 2011 Fiat Siena | |
| Make | BMW | Fiat |
| Model | Z4 | Siena |
| Year Released | 2011 | 2011 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3000 cc | 1697 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 300 HP | 0 HP |
| Torque | 406 Nm | 135 Nm |
| Torque RPM | 1400 RPM | 2500 RPM |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1590 kg | 1090 kg |
| Vehicle Length | 4239 mm | 4140 mm |
| Vehicle Width | 1791 mm | 1640 mm |
| Vehicle Height | 1290 mm | 1440 mm |
| Wheelbase Size | 2497 mm | 2380 mm |
| Fuel Tank Capacity | 55 L | 47 L |
