2005 Porsche 911 vs. 1975 Triumph TR7
To start off, 2005 Porsche 911 is newer by 30 year(s). Which means there will be less support and parts availability for 1975 Triumph TR7. In addition, the cost of maintenance, including insurance, on 1975 Triumph TR7 would be higher. At 3,600 cc (6 cylinders), 2005 Porsche 911 is equipped with a bigger engine. In terms of performance, 2005 Porsche 911 (445 HP @ 5700 RPM) has 341 more horse power than 1975 Triumph TR7. (104 HP @ 5500 RPM). In normal driving conditions, 2005 Porsche 911 should accelerate faster than 1975 Triumph TR7. With that said, vehicle weight also plays an important factor in acceleration. 2005 Porsche 911 weights approximately 545 kg more than 1975 Triumph TR7. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 1975 Triumph TR7. In wet, icy, snow, or gravel driving conditions, 2005 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, 2005 Porsche 911 (620 Nm @ 3500 RPM) has 459 more torque (in Nm) than 1975 Triumph TR7. (161 Nm @ 3500 RPM). This means 2005 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1975 Triumph TR7.
Compare all specifications:
| 2005 Porsche 911 | 1975 Triumph TR7 | |
| Make | Porsche | Triumph |
| Model | 911 | TR7 |
| Year Released | 2005 | 1975 |
| Body Type | Coupe | Coupe |
| Engine Position | Rear | Front |
| Engine Size | 3600 cc | 1998 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | boxer | in-line |
| Horse Power | 445 HP | 104 HP |
| Engine RPM | 5700 RPM | 5500 RPM |
| Torque | 620 Nm | 161 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Engine Bore Size | 100 mm | 90.3 mm |
| Engine Stroke Size | 76.4 mm | 78 mm |
| Engine Compression Ratio | 9.4:1 | 9.3:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1590 kg | 1045 kg |
| Vehicle Length | 4440 mm | 4070 mm |
| Vehicle Width | 1840 mm | 1690 mm |
| Vehicle Height | 1300 mm | 1270 mm |
| Wheelbase Size | 2360 mm | 2170 mm |
| Fuel Tank Capacity | 64 L | 63 L |
