1978 Triumph TR7 vs. 1973 Triumph TR6
To start off, 1978 Triumph TR7 is newer by 5 year(s). Which means there will be less support and parts availability for 1973 Triumph TR6. In addition, the cost of maintenance, including insurance, on 1973 Triumph TR6 would be higher. At 2,498 cc (6 cylinders), 1973 Triumph TR6 is equipped with a bigger engine. In terms of performance, 1973 Triumph TR6 (123 HP @ 5000 RPM) has 19 more horse power than 1978 Triumph TR7. (104 HP @ 5500 RPM) In normal driving conditions, 1973 Triumph TR6 should accelerate faster than 1978 Triumph TR7. With that said, vehicle weight also plays an important factor in acceleration. 1973 Triumph TR6 weights approximately 72 kg more than 1978 Triumph TR7. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 1973 Triumph TR6 (194 Nm @ 3500 RPM) has 33 more torque (in Nm) than 1978 Triumph TR7. (161 Nm @ 3500 RPM). This means 1973 Triumph TR6 will have an easier job in driving up hills or pulling heavy equipment than 1978 Triumph TR7.
Compare all specifications:
| 1978 Triumph TR7 | 1973 Triumph TR6 | |
| Make | Triumph | Triumph |
| Model | TR7 | TR6 |
| Year Released | 1978 | 1973 |
| Body Type | Coupe | Roadster |
| Engine Position | Front | Front |
| Engine Size | 1998 cc | 2498 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 104 HP | 123 HP |
| Engine RPM | 5500 RPM | 5000 RPM |
| Torque | 161 Nm | 194 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1048 kg | 1120 kg |
| Vehicle Length | 4070 mm | 4050 mm |
| Vehicle Width | 1690 mm | 1480 mm |
| Vehicle Height | 1270 mm | 1280 mm |
| Wheelbase Size | 2170 mm | 2250 mm |
| Fuel Tank Capacity | 55 L | 55 L |
