1975 Triumph TR7 vs. 1966 Triumph GT6
To start off, 1975 Triumph TR7 is newer by 9 year(s). Which means there will be less support and parts availability for 1966 Triumph GT6. In addition, the cost of maintenance, including insurance, on 1966 Triumph GT6 would be higher. At 1,998 cc (4 cylinders), 1975 Triumph TR7 is equipped with a bigger engine. In terms of performance, 1966 Triumph GT6 (95 HP @ 5000 RPM) has 6 more horse power than 1975 Triumph TR7. (89 HP @ 5250 RPM) In normal driving conditions, 1966 Triumph GT6 should accelerate faster than 1975 Triumph TR7. With that said, vehicle weight also plays an important factor in acceleration. 1975 Triumph TR7 weights approximately 136 kg more than 1966 Triumph GT6.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 1966 Triumph GT6 (158 Nm @ 3000 RPM) has 23 more torque (in Nm) than 1975 Triumph TR7. (135 Nm @ 2500 RPM). This means 1966 Triumph GT6 will have an easier job in driving up hills or pulling heavy equipment than 1975 Triumph TR7.
Compare all specifications:
| 1975 Triumph TR7 | 1966 Triumph GT6 | |
| Make | Triumph | Triumph |
| Model | TR7 | GT6 |
| Year Released | 1975 | 1966 |
| Engine Position | Front | Front |
| Engine Size | 1998 cc | 1996 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 89 HP | 95 HP |
| Engine RPM | 5250 RPM | 5000 RPM |
| Torque | 135 Nm | 158 Nm |
| Torque RPM | 2500 RPM | 3000 RPM |
| Engine Bore Size | 90.3 mm | 74.7 mm |
| Engine Stroke Size | 78 mm | 76 mm |
| Engine Compression Ratio | 8.0:1 | 9.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 172 km/hour | 171 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1000 kg | 864 kg |
| Vehicle Length | 4070 mm | 3690 mm |
| Vehicle Width | 1690 mm | 1450 mm |
| Vehicle Height | 1270 mm | 1200 mm |
| Wheelbase Size | 2170 mm | 2110 mm |
| Fuel Tank Capacity | 55 L | 44 L |
