1999 Audi A4 vs. 1984 Ford Sierra
To start off, 1999 Audi A4 is newer by 15 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 2,792 cc (6 cylinders), 1984 Ford Sierra is equipped with a bigger engine. In terms of performance, 1984 Ford Sierra (160 HP @ 5700 RPM) has 37 more horse power than 1999 Audi A4. (123 HP @ 5800 RPM) In normal driving conditions, 1984 Ford Sierra should accelerate faster than 1999 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 1999 Audi A4 weights approximately 176 kg more than 1984 Ford Sierra.
Because 1999 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 1984 Ford Sierra. In wet, icy, snow, or gravel driving conditions, 1999 Audi A4 will offer significantly more control. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 1984 Ford Sierra (216 Nm @ 4300 RPM) has 48 more torque (in Nm) than 1999 Audi A4. (168 Nm @ 3500 RPM). This means 1984 Ford Sierra will have an easier job in driving up hills or pulling heavy equipment than 1999 Audi A4.
Compare all specifications:
| 1999 Audi A4 | 1984 Ford Sierra | |
| Make | Audi | Ford |
| Model | A4 | Sierra |
| Year Released | 1999 | 1984 |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 2792 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 123 HP | 160 HP |
| Engine RPM | 5800 RPM | 5700 RPM |
| Torque | 168 Nm | 216 Nm |
| Torque RPM | 3500 RPM | 4300 RPM |
| Engine Bore Size | 81 mm | 93.1 mm |
| Engine Stroke Size | 86.4 mm | 68.5 mm |
| Engine Compression Ratio | 10.3:1 | 9.2:1 |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1356 kg | 1180 kg |
| Vehicle Length | 4480 mm | 4430 mm |
| Vehicle Width | 1740 mm | 1730 mm |
| Vehicle Height | 1420 mm | 1370 mm |
| Wheelbase Size | 2610 mm | 2610 mm |
