2009 Audi TT vs. 2005 Audi A8
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 5,998 cc, 2005 Audi A8 is equipped with a bigger engine. In terms of performance, 2005 Audi A8 (450 HP @ 6300 RPM) has 182 more horse power than 2009 Audi TT. (268 HP @ 2500 RPM) In normal driving conditions, 2005 Audi A8 should accelerate faster than 2009 Audi TT.
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 (560 Nm) has 210 more torque (in Nm) than 2009 Audi TT. (350 Nm). 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:
| 2009 Audi TT | 2005 Audi A8 | |
| Make | Audi | Audi |
| Model | TT | A8 |
| Year Released | 2009 | 2005 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1983 cc | 5998 cc |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 268 HP | 450 HP |
| Engine RPM | 2500 RPM | 6300 RPM |
| Torque | 350 Nm | 560 Nm |
| Engine Bore Size | 82.5 mm | 84.1 mm |
| Engine Stroke Size | 92.8 mm | 90 mm |
| Engine Compression Ratio | 10.5:1 | 11.0:1 |
| Drive Type | 4WD | 4WD |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Length | 4200 mm | 5200 mm |
| Vehicle Width | 1850 mm | 1900 mm |
| Vehicle Height | 1350 mm | 1460 mm |
| Wheelbase Size | 2470 mm | 3080 mm |
| Fuel Tank Capacity | 55 L | 90 L |
