2009 Audi A6 vs. 1984 Ford Sierra
To start off, 2009 Audi A6 is newer by 25 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 1,993 cc (4 cylinders), 1984 Ford Sierra is equipped with a bigger engine. In terms of performance, 2009 Audi A6 (148 HP @ 5700 RPM) has 42 more horse power than 1984 Ford Sierra. (106 HP @ 5200 RPM). In normal driving conditions, 2009 Audi A6 should accelerate faster than 1984 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A6 weights approximately 447 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 2009 Audi A6 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, 2009 Audi A6 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, 2009 Audi A6 (210 Nm @ 1750 RPM) has 53 more torque (in Nm) than 1984 Ford Sierra. (157 Nm @ 4000 RPM). This means 2009 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 1984 Ford Sierra.
Compare all specifications:
| 2009 Audi A6 | 1984 Ford Sierra | |
| Make | Audi | Ford |
| Model | A6 | Sierra |
| Year Released | 2009 | 1984 |
| Engine Position | Front | Front |
| Engine Size | 1779 cc | 1993 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 148 HP | 106 HP |
| Engine RPM | 5700 RPM | 5200 RPM |
| Torque | 210 Nm | 157 Nm |
| Torque RPM | 1750 RPM | 4000 RPM |
| Engine Bore Size | 81 mm | 90.8 mm |
| Engine Stroke Size | 86.4 mm | 77 mm |
| Engine Compression Ratio | 10.0:1 | 9.0:1 |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1595 kg | 1148 kg |
| Vehicle Length | 4800 mm | 4430 mm |
| Vehicle Width | 1820 mm | 1730 mm |
| Vehicle Height | 1460 mm | 1420 mm |
| Wheelbase Size | 2770 mm | 2610 mm |
| Fuel Tank Capacity | 70 L | 60 L |
