2006 BMW Z4 vs. 2011 Toyota Sienna
To start off, 2011 Toyota Sienna is newer by 5 year(s). Which means there will be less support and parts availability for 2006 BMW Z4. In addition, the cost of maintenance, including insurance, on 2006 BMW Z4 would be higher. At 2,979 cc (6 cylinders), 2006 BMW Z4 is equipped with a bigger engine. In terms of performance, 2006 BMW Z4 (228 HP @ 5900 RPM) has 41 more horse power than 2011 Toyota Sienna. (187 HP @ 5800 RPM). In normal driving conditions, 2006 BMW Z4 should accelerate faster than 2011 Toyota Sienna. With that said, vehicle weight also plays an important factor in acceleration. 2011 Toyota Sienna weights approximately 574 kg more than 2006 BMW Z4.
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, 2011 Toyota Sienna, 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, 2006 BMW Z4 (301 Nm @ 3500 RPM) has 49 more torque (in Nm) than 2011 Toyota Sienna. (252 Nm @ 4100 RPM). This means 2006 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2011 Toyota Sienna.
Compare all specifications:
| 2006 BMW Z4 | 2011 Toyota Sienna | |
| Make | BMW | Toyota |
| Model | Z4 | Sienna |
| Year Released | 2006 | 2011 |
| Body Type | Convertible | Minivan |
| Engine Position | Front | Front |
| Engine Size | 2979 cc | 2700 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 228 HP | 187 HP |
| Engine RPM | 5900 RPM | 5800 RPM |
| Torque | 301 Nm | 252 Nm |
| Torque RPM | 3500 RPM | 4100 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Front |
| Number of Seats | 2 seats | 7 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1365 kg | 1939 kg |
| Vehicle Length | 4100 mm | 5085 mm |
| Vehicle Width | 1790 mm | 1984 mm |
| Vehicle Height | 1310 mm | 1765 mm |
| Wheelbase Size | 2500 mm | 3030 mm |
| Fuel Consumption | 7.8 L/100km | 9.8 L/100km |
| Fuel Consumption City | 11.8 L/100km | 12.4 L/100km |
| Fuel Tank Capacity | 55 L | 76 L |
