2005 Audi A8 vs. 2009 Audi TT
To start off, 2009 Audi TT is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Audi A8. In addition, the cost of maintenance, including insurance, on 2005 Audi A8 would be higher. At 4,170 cc (8 cylinders), 2005 Audi A8 is equipped with a bigger engine. In terms of performance, 2005 Audi A8 (330 HP @ 6500 RPM) has 130 more horse power than 2009 Audi TT. (200 HP @ 5100 RPM). In normal driving conditions, 2005 Audi A8 should accelerate faster than 2009 Audi TT. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A8 weights approximately 825 kg more than 2009 Audi TT. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. 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, 2005 Audi A8 (430 Nm @ 3500 RPM) has 149 more torque (in Nm) than 2009 Audi TT. (281 Nm @ 1800 RPM). This means 2005 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi TT.
Compare all specifications:
| 2005 Audi A8 | 2009 Audi TT | |
| Make | Audi | Audi |
| Model | A8 | TT |
| Year Released | 2005 | 2009 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4170 cc | 1984 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 330 HP | 200 HP |
| Engine RPM | 6500 RPM | 5100 RPM |
| Torque | 430 Nm | 281 Nm |
| Torque RPM | 3500 RPM | 1800 RPM |
| Engine Bore Size | 84.5 mm | 82.5 mm |
| Engine Stroke Size | 93 mm | 92.8 mm |
| Engine Compression Ratio | 11.0:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1855 kg | 1030 kg |
| Vehicle Length | 5060 mm | 4180 mm |
| Vehicle Width | 1900 mm | 1850 mm |
| Vehicle Height | 1450 mm | 1370 mm |
| Wheelbase Size | 2770 mm | 2480 mm |
| Fuel Consumption Overall | 11.9 L/100km | 9.8 L/100km |
| Fuel Tank Capacity | 90 L | 55 L |
