2008 Audi A8 vs. 2005 Toyota Sienna
To start off, 2008 Audi A8 is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Toyota Sienna. In addition, the cost of maintenance, including insurance, on 2005 Toyota Sienna would be higher. At 2,999 cc (6 cylinders), 2005 Toyota Sienna is equipped with a bigger engine. In terms of performance, 2008 Audi A8 (230 HP @ 4000 RPM) has 33 more horse power than 2005 Toyota Sienna. (197 HP @ 5200 RPM). In normal driving conditions, 2008 Audi A8 should accelerate faster than 2005 Toyota Sienna. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A8 weights approximately 125 kg more than 2005 Toyota Sienna. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Toyota Sienna. In wet, icy, snow, or gravel driving conditions, 2008 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, 2008 Audi A8 (450 Nm @ 1400 RPM) has 155 more torque (in Nm) than 2005 Toyota Sienna. (295 Nm @ 4300 RPM). This means 2008 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2005 Toyota Sienna.
Compare all specifications:
| 2008 Audi A8 | 2005 Toyota Sienna | |
| Make | Audi | Toyota |
| Model | A8 | Sienna |
| Year Released | 2008 | 2005 |
| Body Type | Sedan | Minivan |
| Engine Position | Front | Front |
| Engine Size | 2967 cc | 2999 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 230 HP | 197 HP |
| Engine RPM | 4000 RPM | 5200 RPM |
| Torque | 450 Nm | 295 Nm |
| Torque RPM | 1400 RPM | 4300 RPM |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1830 kg | 1705 kg |
| Vehicle Length | 5190 mm | 4920 mm |
| Vehicle Width | 1900 mm | 1870 mm |
| Vehicle Height | 1450 mm | 1720 mm |
| Wheelbase Size | 3080 mm | 2910 mm |
