2009 Audi A5 vs. 2005 Opel Signum
To start off, 2009 Audi A5 is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Opel Signum. In addition, the cost of maintenance, including insurance, on 2005 Opel Signum would be higher. At 3,197 cc (6 cylinders), 2009 Audi A5 is equipped with a bigger engine. In terms of performance, 2009 Audi A5 (265 HP @ 6500 RPM) has 90 more horse power than 2005 Opel Signum. (175 HP @ 4000 RPM). In normal driving conditions, 2009 Audi A5 should accelerate faster than 2005 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2005 Opel Signum weights approximately 775 kg more than 2009 Audi A5.
Because 2009 Audi A5 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Opel Signum. In wet, icy, snow, or gravel driving conditions, 2009 Audi A5 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, 2005 Opel Signum (370 Nm @ 1900 RPM) has 40 more torque (in Nm) than 2009 Audi A5. (330 Nm @ 3250 RPM). This means 2005 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A5. 2009 Audi A5 has automatic transmission and 2005 Opel Signum has manual transmission. 2005 Opel Signum will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Audi A5 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Audi A5 | 2005 Opel Signum | |
| Make | Audi | Opel |
| Model | A5 | Signum |
| Year Released | 2009 | 2005 |
| Body Type | Coupe | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3197 cc | 2958 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 265 HP | 175 HP |
| Engine RPM | 6500 RPM | 4000 RPM |
| Torque | 330 Nm | 370 Nm |
| Torque RPM | 3250 RPM | 1900 RPM |
| Engine Compression Ratio | 10.5:1 | 18.5:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 895 kg | 1670 kg |
| Vehicle Length | 4630 mm | 4640 mm |
| Vehicle Width | 1990 mm | 1800 mm |
| Vehicle Height | 1380 mm | 1470 mm |
| Wheelbase Size | 2760 mm | 2620 mm |
| Fuel Consumption Overall | 11.8 L/100km | 7.6 L/100km |
| Fuel Tank Capacity | 64 L | 60 L |
