2006 Audi A8 vs. 1986 Ford Sierra
To start off, 2006 Audi A8 is newer by 20 year(s). Which means there will be less support and parts availability for 1986 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1986 Ford Sierra would be higher. At 3,123 cc (6 cylinders), 2006 Audi A8 is equipped with a bigger engine. In terms of performance, 2006 Audi A8 (256 HP) has 96 more horse power than 1986 Ford Sierra. (160 HP). In normal driving conditions, 2006 Audi A8 should accelerate faster than 1986 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi A8 weights approximately 9 kg more than 1986 Ford Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. 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, 2006 Audi A8 (330 Nm @ 3250 RPM) has 114 more torque (in Nm) than 1986 Ford Sierra. (216 Nm @ 4300 RPM). This means 2006 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 1986 Ford Sierra. 2006 Audi A8 has automatic transmission and 1986 Ford Sierra has manual transmission. 1986 Ford Sierra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 Audi A8 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 Audi A8 | 1986 Ford Sierra | |
| Make | Audi | Ford |
| Model | A8 | Sierra |
| Year Released | 2006 | 1986 |
| Engine Position | Front | Front |
| Engine Size | 3123 cc | 2792 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Horse Power | 256 HP | 160 HP |
| Torque | 330 Nm | 216 Nm |
| Torque RPM | 3250 RPM | 4300 RPM |
| Engine Bore Size | 84.5 mm | 93 mm |
| Engine Stroke Size | 92.8 mm | 68.5 mm |
| Engine Compression Ratio | 13.0:1 | 9.2:1 |
| Top Speed | 250 km/hour | 196 km/hour |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1275 kg | 1266 kg |
| Vehicle Length | 5060 mm | 4430 mm |
| Vehicle Width | 1900 mm | 1730 mm |
| Wheelbase Size | 2950 mm | 2610 mm |
| Fuel Tank Capacity | 90 L | 116 L |
