1991 Audi 100 vs. 2005 Opel Signum
To start off, 2005 Opel Signum is newer by 14 year(s). Which means there will be less support and parts availability for 1991 Audi 100. In addition, the cost of maintenance, including insurance, on 1991 Audi 100 would be higher. At 2,771 cc (6 cylinders), 1991 Audi 100 is equipped with a bigger engine. In terms of performance, 1991 Audi 100 (172 HP @ 5500 RPM) has 48 more horse power than 2005 Opel Signum. (124 HP @ 3250 RPM). In normal driving conditions, 1991 Audi 100 should accelerate faster than 2005 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2005 Opel Signum weights approximately 104 kg more than 1991 Audi 100.
Let's talk about torque, 2005 Opel Signum (280 Nm @ 1500 RPM) has 30 more torque (in Nm) than 1991 Audi 100. (250 Nm @ 3000 RPM). This means 2005 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1991 Audi 100.
Compare all specifications:
| 1991 Audi 100 | 2005 Opel Signum | |
| Make | Audi | Opel |
| Model | 100 | Signum |
| Year Released | 1991 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 2771 cc | 2171 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 172 HP | 124 HP |
| Engine RPM | 5500 RPM | 3250 RPM |
| Torque | 250 Nm | 280 Nm |
| Torque RPM | 3000 RPM | 1500 RPM |
| Engine Bore Size | 82.5 mm | 84 mm |
| Engine Stroke Size | 86.4 mm | 98 mm |
| Fuel Type | Gasoline | Diesel |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1506 kg | 1610 kg |
| Vehicle Length | 4800 mm | 4640 mm |
| Vehicle Width | 1780 mm | 1800 mm |
| Vehicle Height | 1450 mm | 1470 mm |
