1998 Audi A4 vs. 1987 Ford Sierra
To start off, 1998 Audi A4 is newer by 11 year(s). Which means there will be less support and parts availability for 1987 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1987 Ford Sierra would be higher. At 2,294 cc (4 cylinders), 1987 Ford Sierra is equipped with a bigger engine. In terms of performance, 1987 Ford Sierra (113 HP @ 5300 RPM) has 13 more horse power than 1998 Audi A4. (100 HP @ 5300 RPM) In normal driving conditions, 1987 Ford Sierra should accelerate faster than 1998 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 1998 Audi A4 weights approximately 110 kg more than 1987 Ford Sierra.
Let's talk about torque, 1987 Ford Sierra (180 Nm @ 3000 RPM) has 40 more torque (in Nm) than 1998 Audi A4. (140 Nm @ 3800 RPM). This means 1987 Ford Sierra will have an easier job in driving up hills or pulling heavy equipment than 1998 Audi A4.
Compare all specifications:
| 1998 Audi A4 | 1987 Ford Sierra | |
| Make | Audi | Ford |
| Model | A4 | Sierra |
| Year Released | 1998 | 1987 |
| Engine Position | Front | Front |
| Engine Size | 1595 cc | 2294 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 100 HP | 113 HP |
| Engine RPM | 5300 RPM | 5300 RPM |
| Torque | 140 Nm | 180 Nm |
| Torque RPM | 3800 RPM | 3000 RPM |
| Engine Bore Size | 81 mm | 96 mm |
| Engine Stroke Size | 77.5 mm | 79.5 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1200 kg | 1090 kg |
| Vehicle Length | 4480 mm | 4400 mm |
| Vehicle Width | 1740 mm | 1680 mm |
| Vehicle Height | 1420 mm | 1370 mm |
| Wheelbase Size | 2620 mm | 2620 mm |
