1991 Porsche 911 vs. 2007 Porsche 911
To start off, 2007 Porsche 911 is newer by 16 year(s). Which means there will be less support and parts availability for 1991 Porsche 911. In addition, the cost of maintenance, including insurance, on 1991 Porsche 911 would be higher. At 3,824 cc (6 cylinders), 2007 Porsche 911 is equipped with a bigger engine. In terms of performance, 2007 Porsche 911 (355 HP @ 6600 RPM) has 127 more horse power than 1991 Porsche 911. (228 HP @ 5900 RPM) In normal driving conditions, 2007 Porsche 911 should accelerate faster than 1991 Porsche 911. With that said, vehicle weight also plays an important factor in acceleration. 2007 Porsche 911 weights approximately 300 kg more than 1991 Porsche 911. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2007 Porsche 911 (401 Nm @ 4600 RPM) has 115 more torque (in Nm) than 1991 Porsche 911. (286 Nm @ 4800 RPM). This means 2007 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1991 Porsche 911.
Compare all specifications:
| 1991 Porsche 911 | 2007 Porsche 911 | |
| Make | Porsche | Porsche |
| Model | 911 | 911 |
| Year Released | 1991 | 2007 |
| Body Type | Roadster | Coupe |
| Engine Position | Rear | Rear |
| Engine Size | 3163 cc | 3824 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | boxer | boxer |
| Horse Power | 228 HP | 355 HP |
| Engine RPM | 5900 RPM | 6600 RPM |
| Torque | 286 Nm | 401 Nm |
| Torque RPM | 4800 RPM | 4600 RPM |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1175 kg | 1475 kg |
| Vehicle Length | 4300 mm | 4470 mm |
| Vehicle Width | 1660 mm | 1860 mm |
| Vehicle Height | 1260 mm | 1310 mm |
