1991 Audi 100 vs. 1984 Ford Sierra
To start off, 1991 Audi 100 is newer by 7 year(s). Which means there will be less support and parts availability for 1984 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1984 Ford Sierra 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 58 more horse power than 1984 Ford Sierra. (114 HP @ 5300 RPM). In normal driving conditions, 1991 Audi 100 should accelerate faster than 1984 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1991 Audi 100 weights approximately 391 kg more than 1984 Ford Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1991 Audi 100 (250 Nm @ 3000 RPM) has 74 more torque (in Nm) than 1984 Ford Sierra. (176 Nm @ 3000 RPM). This means 1991 Audi 100 will have an easier job in driving up hills or pulling heavy equipment than 1984 Ford Sierra.
Compare all specifications:
| 1991 Audi 100 | 1984 Ford Sierra | |
| Make | Audi | Ford |
| Model | 100 | Sierra |
| Year Released | 1991 | 1984 |
| Engine Position | Front | Front |
| Engine Size | 2771 cc | 2294 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 172 HP | 114 HP |
| Engine RPM | 5500 RPM | 5300 RPM |
| Torque | 250 Nm | 176 Nm |
| Torque RPM | 3000 RPM | 3000 RPM |
| Engine Bore Size | 82.5 mm | 90 mm |
| Engine Stroke Size | 86.4 mm | 60.1 mm |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1506 kg | 1115 kg |
| Vehicle Length | 4800 mm | 4420 mm |
| Vehicle Width | 1780 mm | 1730 mm |
| Vehicle Height | 1450 mm | 1420 mm |
