2009 Audi A8 vs. 2004 Toyota Sienna
To start off, 2009 Audi A8 is newer by 5 year(s). Which means there will be less support and parts availability for 2004 Toyota Sienna. In addition, the cost of maintenance, including insurance, on 2004 Toyota Sienna would be higher. At 5,204 cc (10 cylinders), 2009 Audi A8 is equipped with a bigger engine. In terms of performance, 2009 Audi A8 (444 HP @ 7000 RPM) has 250 more horse power than 2004 Toyota Sienna. (194 HP @ 5600 RPM). In normal driving conditions, 2009 Audi A8 should accelerate faster than 2004 Toyota Sienna. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A8 weights approximately 235 kg more than 2004 Toyota Sienna. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2004 Toyota Sienna. In wet, icy, snow, or gravel driving conditions, 2009 Audi A8 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, 2009 Audi A8 (540 Nm @ 3500 RPM) has 267 more torque (in Nm) than 2004 Toyota Sienna. (273 Nm @ 4300 RPM). This means 2009 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2004 Toyota Sienna.
Compare all specifications:
| 2009 Audi A8 | 2004 Toyota Sienna | |
| Make | Audi | Toyota |
| Model | A8 | Sienna |
| Year Released | 2009 | 2004 |
| Body Type | Sedan | Minivan |
| Engine Position | Front | Front |
| Engine Size | 5204 cc | 2996 cc |
| Engine Cylinders | 10 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 444 HP | 194 HP |
| Engine RPM | 7000 RPM | 5600 RPM |
| Torque | 540 Nm | 273 Nm |
| Torque RPM | 3500 RPM | 4300 RPM |
| Engine Bore Size | 84.5 mm | 87.5 mm |
| Engine Stroke Size | 92.8 mm | 83 mm |
| Engine Compression Ratio | 12.5:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1940 kg | 1705 kg |
| Vehicle Length | 5070 mm | 4920 mm |
| Vehicle Width | 1900 mm | 1870 mm |
| Vehicle Height | 1430 mm | 1720 mm |
| Wheelbase Size | 2950 mm | 2910 mm |
