1999 Audi S8 vs. 2011 GMC Sierra
To start off, 2011 GMC Sierra is newer by 12 year(s). Which means there will be less support and parts availability for 1999 Audi S8. In addition, the cost of maintenance, including insurance, on 1999 Audi S8 would be higher. At 5,999 cc (8 cylinders), 2011 GMC Sierra is equipped with a bigger engine. In terms of performance, 2011 GMC Sierra (353 HP @ 5400 RPM) has 106 more horse power than 1999 Audi S8. (247 HP @ 7000 RPM) In normal driving conditions, 2011 GMC Sierra should accelerate faster than 1999 Audi S8. With that said, vehicle weight also plays an important factor in acceleration. 2011 GMC Sierra weights approximately 914 kg more than 1999 Audi S8. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2011 GMC Sierra (506 Nm @ 4400 RPM) has 176 more torque (in Nm) than 1999 Audi S8. (330 Nm @ 3400 RPM). This means 2011 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1999 Audi S8.
Compare all specifications:
| 1999 Audi S8 | 2011 GMC Sierra | |
| Make | Audi | GMC |
| Model | S8 | Sierra |
| Year Released | 1999 | 2011 |
| Body Type | Sedan | Pickup |
| Engine Position | Front | Front |
| Engine Size | 4170 cc | 5999 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 247 HP | 353 HP |
| Engine RPM | 7000 RPM | 5400 RPM |
| Torque | 330 Nm | 506 Nm |
| Torque RPM | 3400 RPM | 4400 RPM |
| Drive Type | AWD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 3 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1750 kg | 2664 kg |
| Vehicle Length | 5040 mm | 5710 mm |
| Vehicle Width | 1890 mm | 2040 mm |
| Vehicle Height | 1420 mm | 1940 mm |
| Wheelbase Size | 2890 mm | 3380 mm |
| Fuel Consumption Overall | 13.9 L/100km | 13.1 L/100km |
| Fuel Tank Capacity | 90 L | 129 L |
