2002 Audi A4 vs. 1987 Ford Sierra
To start off, 2002 Audi A4 is newer by 15 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 2,391 cc (6 cylinders), 2002 Audi A4 is equipped with a bigger engine. In terms of performance, 2002 Audi A4 (168 HP @ 4000 RPM) has 55 more horse power than 1987 Ford Sierra. (113 HP @ 5300 RPM). In normal driving conditions, 2002 Audi A4 should accelerate faster than 1987 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2002 Audi A4 weights approximately 470 kg more than 1987 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, 2002 Audi A4 (310 Nm @ 1400 RPM) has 130 more torque (in Nm) than 1987 Ford Sierra. (180 Nm @ 3000 RPM). This means 2002 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1987 Ford Sierra.
Compare all specifications:
| 2002 Audi A4 | 1987 Ford Sierra | |
| Make | Audi | Ford |
| Model | A4 | Sierra |
| Year Released | 2002 | 1987 |
| Engine Position | Front | Front |
| Engine Size | 2391 cc | 2294 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 168 HP | 113 HP |
| Engine RPM | 4000 RPM | 5300 RPM |
| Torque | 310 Nm | 180 Nm |
| Torque RPM | 1400 RPM | 3000 RPM |
| Engine Bore Size | 78.3 mm | 96 mm |
| Engine Stroke Size | 86.4 mm | 79.5 mm |
| Fuel Type | Diesel | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1560 kg | 1090 kg |
| Vehicle Length | 4550 mm | 4400 mm |
| Vehicle Width | 1780 mm | 1680 mm |
| Vehicle Height | 1430 mm | 1370 mm |
| Wheelbase Size | 2770 mm | 2620 mm |
| Fuel Tank Capacity | 70 L | 45 L |
