1999 Nissan R 391 vs. 2003 Porsche 911
To start off, 2003 Porsche 911 is newer by 4 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, 2003 Porsche 911 (443 HP @ 6000 RPM) has 291 more horse power than 1999 Nissan R 391. (152 HP @ 3600 RPM) In normal driving conditions, 2003 Porsche 911 should accelerate faster than 1999 Nissan R 391.
Because 2003 Porsche 911 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, 2003 Porsche 911 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, 2003 Porsche 911 (620 Nm) has 261 more torque (in Nm) than 1999 Nissan R 391. (359 Nm). This means 2003 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1999 Nissan R 391. 1999 Nissan R 391 has automatic transmission and 2003 Porsche 911 has manual transmission. 2003 Porsche 911 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1999 Nissan R 391 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1999 Nissan R 391 | 2003 Porsche 911 | |
| Make | Nissan | Porsche |
| Model | R 391 | 911 |
| Year Released | 1999 | 2003 |
| Engine Position | Rear | Rear |
| Engine Size | 4997 cc | 3600 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Horse Power | 152 HP | 443 HP |
| Engine RPM | 3600 RPM | 6000 RPM |
| Torque | 359 Nm | 620 Nm |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 1 seats | 2 seats |
