1971 Opel GT vs. 1991 Porsche 911
To start off, 1991 Porsche 911 is newer by 20 year(s). Which means there will be less support and parts availability for 1971 Opel GT. In addition, the cost of maintenance, including insurance, on 1971 Opel GT would be higher. At 3,163 cc (6 cylinders), 1991 Porsche 911 is equipped with a bigger engine. In terms of performance, 1991 Porsche 911 (228 HP @ 5900 RPM) has 139 more horse power than 1971 Opel GT. (89 HP @ 5200 RPM) In normal driving conditions, 1991 Porsche 911 should accelerate faster than 1971 Opel GT.
Let's talk about torque, 1991 Porsche 911 (286 Nm @ 4800 RPM) has 134 more torque (in Nm) than 1971 Opel GT. (152 Nm @ 3400 RPM). This means 1991 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1971 Opel GT.
Compare all specifications:
| 1971 Opel GT | 1991 Porsche 911 | |
| Make | Opel | Porsche |
| Model | GT | 911 |
| Year Released | 1971 | 1991 |
| Body Type | Coupe | Roadster |
| Engine Position | Front | Rear |
| Engine Size | 1900 cc | 3163 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 89 HP | 228 HP |
| Engine RPM | 5200 RPM | 5900 RPM |
| Torque | 152 Nm | 286 Nm |
| Torque RPM | 3400 RPM | 4800 RPM |
| Fuel Type | Gasoline | Gasoline |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Length | 4120 mm | 4300 mm |
| Vehicle Width | 1590 mm | 1660 mm |
| Vehicle Height | 1230 mm | 1260 mm |
