2007 Opel Signum vs. 1973 Triumph Spitfire
To start off, 2007 Opel Signum is newer by 34 year(s). Which means there will be less support and parts availability for 1973 Triumph Spitfire. In addition, the cost of maintenance, including insurance, on 1973 Triumph Spitfire would be higher. At 1,909 cc (4 cylinders), 2007 Opel Signum is equipped with a bigger engine. In terms of performance, 2007 Opel Signum (148 HP @ 4000 RPM) has 86 more horse power than 1973 Triumph Spitfire. (62 HP @ 6000 RPM). In normal driving conditions, 2007 Opel Signum should accelerate faster than 1973 Triumph Spitfire. With that said, vehicle weight also plays an important factor in acceleration. 2007 Opel Signum weights approximately 833 kg more than 1973 Triumph Spitfire. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2007 Opel Signum (315 Nm @ 2000 RPM) has 222 more torque (in Nm) than 1973 Triumph Spitfire. (93 Nm @ 3500 RPM). This means 2007 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1973 Triumph Spitfire.
Compare all specifications:
| 2007 Opel Signum | 1973 Triumph Spitfire | |
| Make | Opel | Triumph |
| Model | Signum | Spitfire |
| Year Released | 2007 | 1973 |
| Body Type | Hatchback | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1909 cc | 1296 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 148 HP | 62 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 315 Nm | 93 Nm |
| Torque RPM | 2000 RPM | 3500 RPM |
| Engine Bore Size | 82 mm | 73.8 mm |
| Engine Stroke Size | 90.4 mm | 76 mm |
| Fuel Type | Diesel | Gasoline |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1613 kg | 780 kg |
| Vehicle Length | 4640 mm | 3790 mm |
| Vehicle Width | 1800 mm | 1480 mm |
| Vehicle Height | 1470 mm | 1210 mm |
| Wheelbase Size | 2840 mm | 2110 mm |
