1991 Audi 100 vs. 2005 Porsche 911
To start off, 2005 Porsche 911 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 3,822 cc (6 cylinders), 2005 Porsche 911 is equipped with a bigger engine. In terms of performance, 2005 Porsche 911 (350 HP @ 6600 RPM) has 178 more horse power than 1991 Audi 100. (172 HP @ 5500 RPM) In normal driving conditions, 2005 Porsche 911 should accelerate faster than 1991 Audi 100. With that said, vehicle weight also plays an important factor in acceleration. 1991 Audi 100 weights approximately 1 kg more than 2005 Porsche 911.
Let's talk about torque, 2005 Porsche 911 (408 Nm @ 4600 RPM) has 158 more torque (in Nm) than 1991 Audi 100. (250 Nm @ 3000 RPM). This means 2005 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1991 Audi 100.
Compare all specifications:
| 1991 Audi 100 | 2005 Porsche 911 | |
| Make | Audi | Porsche |
| Model | 100 | 911 |
| Year Released | 1991 | 2005 |
| Engine Position | Front | Rear |
| Engine Size | 2771 cc | 3822 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 172 HP | 350 HP |
| Engine RPM | 5500 RPM | 6600 RPM |
| Torque | 250 Nm | 408 Nm |
| Torque RPM | 3000 RPM | 4600 RPM |
| Engine Bore Size | 82.5 mm | 99 mm |
| Engine Stroke Size | 86.4 mm | 82.8 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 1506 kg | 1505 kg |
| Vehicle Length | 4800 mm | 4470 mm |
| Vehicle Width | 1780 mm | 1810 mm |
| Vehicle Height | 1450 mm | 1310 mm |
