2004 BMW Z4 vs. 2007 Toyota Sienna
To start off, 2007 Toyota Sienna is newer by 3 year(s). Which means there will be less support and parts availability for 2004 BMW Z4. In addition, the cost of maintenance, including insurance, on 2004 BMW Z4 would be higher. At 3,455 cc (6 cylinders), 2007 Toyota Sienna is equipped with a bigger engine. In terms of performance, 2007 Toyota Sienna (266 HP @ 6200 RPM) has 41 more horse power than 2004 BMW Z4. (225 HP @ 5900 RPM) In normal driving conditions, 2007 Toyota Sienna should accelerate faster than 2004 BMW Z4.
Because 2007 Toyota Sienna is four wheel drive (4WD), it will have significant more traction and grip than 2004 BMW Z4. In wet, icy, snow, or gravel driving conditions, 2007 Toyota Sienna will offer significantly more control. 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, 2007 Toyota Sienna (332 Nm @ 4700 RPM) has 32 more torque (in Nm) than 2004 BMW Z4. (300 Nm @ 3500 RPM). This means 2007 Toyota Sienna will have an easier job in driving up hills or pulling heavy equipment than 2004 BMW Z4.
Compare all specifications:
| 2004 BMW Z4 | 2007 Toyota Sienna | |
| Make | BMW | Toyota |
| Model | Z4 | Sienna |
| Year Released | 2004 | 2007 |
| Body Type | Convertible | Minivan |
| Engine Position | Front | Front |
| Engine Size | 2983 cc | 3455 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 225 HP | 266 HP |
| Engine RPM | 5900 RPM | 6200 RPM |
| Torque | 300 Nm | 332 Nm |
| Torque RPM | 3500 RPM | 4700 RPM |
| Engine Compression Ratio | 10.2:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | 4WD |
| Number of Seats | 2 seats | 7 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Length | 4100 mm | 5110 mm |
| Vehicle Width | 1790 mm | 1970 mm |
| Vehicle Height | 1310 mm | 1760 mm |
| Wheelbase Size | 2500 mm | 3040 mm |
| Fuel Consumption | 8.1 L/100km | 10.2 L/100km |
| Fuel Consumption City | 11.2 L/100km | 13.1 L/100km |
| Fuel Consumption Overall | 9.1 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 55 L | 76 L |
