2009 Audi A8 vs. 1991 Ford Sierra
To start off, 2009 Audi A8 is newer by 18 year(s). Which means there will be less support and parts availability for 1991 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1991 Ford Sierra would be higher. At 3,696 cc (8 cylinders), 2009 Audi A8 is equipped with a bigger engine. In terms of performance, 2009 Audi A8 (276 HP @ 6000 RPM) has 201 more horse power than 1991 Ford Sierra. (75 HP @ 4500 RPM). In normal driving conditions, 2009 Audi A8 should accelerate faster than 1991 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A8 weights approximately 625 kg more than 1991 Ford Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2009 Audi A8 (360 Nm @ 3750 RPM) has 208 more torque (in Nm) than 1991 Ford Sierra. (152 Nm @ 2200 RPM). This means 2009 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 1991 Ford Sierra.
Compare all specifications:
2009 Audi A8 | 1991 Ford Sierra | |
Make | Audi | Ford |
Model | A8 | Sierra |
Year Released | 2009 | 1991 |
Engine Position | Front | Front |
Engine Size | 3696 cc | 1751 cc |
Engine Cylinders | 8 cylinders | 4 cylinders |
Engine Type | V | in-line |
Horse Power | 276 HP | 75 HP |
Engine RPM | 6000 RPM | 4500 RPM |
Torque | 360 Nm | 152 Nm |
Torque RPM | 3750 RPM | 2200 RPM |
Engine Bore Size | 84.5 mm | 82.5 mm |
Engine Stroke Size | 82.4 mm | 82 mm |
Engine Compression Ratio | 11.0:1 | 21.5:1 |
Fuel Type | Gasoline - Premium | Diesel |
Number of Seats | 5 seats | 5 seats |
Number of Doors | 4 doors | 4 doors |
Vehicle Weight | 1770 kg | 1145 kg |
Vehicle Length | 5060 mm | 4430 mm |
Vehicle Width | 1900 mm | 1700 mm |
Vehicle Height | 1450 mm | 1370 mm |
Wheelbase Size | 2950 mm | 2620 mm |
Fuel Tank Capacity | 90 L | 60 L |