2009 Audi S6 vs. 1999 Nissan R 391
To start off, 2009 Audi S6 is newer by 10 year(s). Which means there will be less support and parts availability for 1999 Nissan R 391. In addition, the cost of maintenance, including insurance, on 1999 Nissan R 391 would be higher. At 4,997 cc (8 cylinders), 1999 Nissan R 391 is equipped with a bigger engine. In terms of performance, 2009 Audi S6 (335 HP @ 7000 RPM) has 183 more horse power than 1999 Nissan R 391. (152 HP @ 3600 RPM). In normal driving conditions, 2009 Audi S6 should accelerate faster than 1999 Nissan R 391.
Because 2009 Audi S6 is four wheel drive (4WD), it will have significant more traction and grip than 1999 Nissan R 391. In wet, icy, snow, or gravel driving conditions, 2009 Audi S6 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 S6 (420 Nm) has 61 more torque (in Nm) than 1999 Nissan R 391. (359 Nm). This means 2009 Audi S6 will have an easier job in driving up hills or pulling heavy equipment than 1999 Nissan R 391.
Compare all specifications:
| 2009 Audi S6 | 1999 Nissan R 391 | |
| Make | Audi | Nissan |
| Model | S6 | R 391 |
| Year Released | 2009 | 1999 |
| Engine Position | Front | Rear |
| Engine Size | 4172 cc | 4997 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 335 HP | 152 HP |
| Engine RPM | 7000 RPM | 3600 RPM |
| Torque | 420 Nm | 359 Nm |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 1 seats |
