2009 Jeep Grand Cherokee vs. 1991 Porsche 911
To start off, 2009 Jeep Grand Cherokee is newer by 18 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 5,654 cc (8 cylinders), 2009 Jeep Grand Cherokee is equipped with a bigger engine. In terms of performance, 2009 Jeep Grand Cherokee (381 HP @ 5600 RPM) has 153 more horse power than 1991 Porsche 911. (228 HP @ 5900 RPM). In normal driving conditions, 2009 Jeep Grand Cherokee should accelerate faster than 1991 Porsche 911. With that said, vehicle weight also plays an important factor in acceleration. 2009 Jeep Grand Cherokee weights approximately 653 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, 2009 Jeep Grand Cherokee (548 Nm @ 4000 RPM) has 262 more torque (in Nm) than 1991 Porsche 911. (286 Nm @ 4800 RPM). This means 2009 Jeep Grand Cherokee will have an easier job in driving up hills or pulling heavy equipment than 1991 Porsche 911.
Compare all specifications:
| 2009 Jeep Grand Cherokee | 1991 Porsche 911 | |
| Make | Jeep | Porsche |
| Model | Grand Cherokee | 911 |
| Year Released | 2009 | 1991 |
| Body Type | SUV | Roadster |
| Engine Position | Front | Rear |
| Engine Size | 5654 cc | 3163 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Horse Power | 381 HP | 228 HP |
| Engine RPM | 5600 RPM | 5900 RPM |
| Torque | 548 Nm | 286 Nm |
| Torque RPM | 4000 RPM | 4800 RPM |
| Fuel Type | Gasoline | Gasoline |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1828 kg | 1175 kg |
| Vehicle Length | 4780 mm | 4300 mm |
| Vehicle Width | 1850 mm | 1660 mm |
| Vehicle Height | 1760 mm | 1260 mm |
