2008 Audi A5 vs. 1984 Ford Sierra
To start off, 2008 Audi A5 is newer by 24 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 4,163 cc (8 cylinders), 2008 Audi A5 is equipped with a bigger engine. In terms of performance, 2008 Audi A5 (349 HP @ 7000 RPM) has 290 more horse power than 1984 Ford Sierra. (59 HP @ 5700 RPM). In normal driving conditions, 2008 Audi A5 should accelerate faster than 1984 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A5 weights approximately 660 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.
Because 2008 Audi A5 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, 2008 Audi A5 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, 2008 Audi A5 (440 Nm @ 3500 RPM) has 342 more torque (in Nm) than 1984 Ford Sierra. (98 Nm @ 3100 RPM). This means 2008 Audi A5 will have an easier job in driving up hills or pulling heavy equipment than 1984 Ford Sierra.
Compare all specifications:
| 2008 Audi A5 | 1984 Ford Sierra | |
| Make | Audi | Ford |
| Model | A5 | Sierra |
| Year Released | 2008 | 1984 |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 1294 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 349 HP | 59 HP |
| Engine RPM | 7000 RPM | 5700 RPM |
| Torque | 440 Nm | 98 Nm |
| Torque RPM | 3500 RPM | 3100 RPM |
| Engine Bore Size | 84.5 mm | 79.1 mm |
| Engine Stroke Size | 93 mm | 66 mm |
| Engine Compression Ratio | 10.3:1 | 9.0:1 |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 3 doors |
| Vehicle Weight | 1630 kg | 970 kg |
| Vehicle Length | 4640 mm | 4400 mm |
| Vehicle Width | 1860 mm | 1710 mm |
| Vehicle Height | 1380 mm | 1420 mm |
| Wheelbase Size | 2760 mm | 2610 mm |
| Fuel Tank Capacity | 64 L | 60 L |
