2005 Audi A8 vs. 1989 Ford Sierra
To start off, 2005 Audi A8 is newer by 16 year(s). Which means there will be less support and parts availability for 1989 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1989 Ford Sierra would be higher. At 3,936 cc (8 cylinders), 2005 Audi A8 is equipped with a bigger engine. In terms of performance, 2005 Audi A8 (271 HP @ 3750 RPM) has 197 more horse power than 1989 Ford Sierra. (74 HP @ 5300 RPM). In normal driving conditions, 2005 Audi A8 should accelerate faster than 1989 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A8 weights approximately 760 kg more than 1989 Ford Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 1989 Ford Sierra. In wet, icy, snow, or gravel driving conditions, 2005 Audi A8 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, 2005 Audi A8 (650 Nm @ 1800 RPM) has 528 more torque (in Nm) than 1989 Ford Sierra. (122 Nm @ 2900 RPM). This means 2005 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 1989 Ford Sierra. 2005 Audi A8 has automatic transmission and 1989 Ford Sierra has manual transmission. 1989 Ford Sierra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Audi A8 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Audi A8 | 1989 Ford Sierra | |
| Make | Audi | Ford |
| Model | A8 | Sierra |
| Year Released | 2005 | 1989 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 3936 cc | 1597 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 271 HP | 74 HP |
| Engine RPM | 3750 RPM | 5300 RPM |
| Torque | 650 Nm | 122 Nm |
| Torque RPM | 1800 RPM | 2900 RPM |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1770 kg | 1010 kg |
| Vehicle Length | 5190 mm | 4500 mm |
| Vehicle Width | 1900 mm | 1680 mm |
| Vehicle Height | 1460 mm | 1400 mm |
| Wheelbase Size | 3080 mm | 2620 mm |
