1975 Audi 80 vs. 1987 Ford Sierra
To start off, 1987 Ford Sierra is newer by 12 year(s). Which means there will be less support and parts availability for 1975 Audi 80. In addition, the cost of maintenance, including insurance, on 1975 Audi 80 would be higher. At 2,292 cc (4 cylinders), 1987 Ford Sierra is equipped with a bigger engine. In terms of performance, 1987 Ford Sierra (112 HP @ 5300 RPM) has 2 more horse power than 1975 Audi 80. (110 HP @ 6100 RPM) In normal driving conditions, 1987 Ford Sierra should accelerate faster than 1975 Audi 80. With that said, vehicle weight also plays an important factor in acceleration. 1987 Ford Sierra weights approximately 223 kg more than 1975 Audi 80. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1987 Ford Sierra (180 Nm @ 3000 RPM) has 40 more torque (in Nm) than 1975 Audi 80. (140 Nm @ 5000 RPM). This means 1987 Ford Sierra will have an easier job in driving up hills or pulling heavy equipment than 1975 Audi 80.
Compare all specifications:
| 1975 Audi 80 | 1987 Ford Sierra | |
| Make | Audi | Ford |
| Model | 80 | Sierra |
| Year Released | 1975 | 1987 |
| Engine Position | Front | Front |
| Engine Size | 1588 cc | 2292 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 110 HP | 112 HP |
| Engine RPM | 6100 RPM | 5300 RPM |
| Torque | 140 Nm | 180 Nm |
| Torque RPM | 5000 RPM | 3000 RPM |
| Engine Bore Size | 79.5 mm | 96 mm |
| Engine Stroke Size | 80 mm | 79.5 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 912 kg | 1135 kg |
| Vehicle Length | 4390 mm | 4500 mm |
| Vehicle Width | 1690 mm | 1680 mm |
| Vehicle Height | 1370 mm | 1400 mm |
| Wheelbase Size | 2550 mm | 2620 mm |
