2004 Opel Signum vs. 1973 Rover 3.5 Litre
To start off, 2004 Opel Signum is newer by 31 year(s). Which means there will be less support and parts availability for 1973 Rover 3.5 Litre. In addition, the cost of maintenance, including insurance, on 1973 Rover 3.5 Litre would be higher. At 3,532 cc (8 cylinders), 1973 Rover 3.5 Litre is equipped with a bigger engine. In terms of performance, 2004 Opel Signum (173 HP @ 5500 RPM) has 23 more horse power than 1973 Rover 3.5 Litre. (150 HP @ 5000 RPM). In normal driving conditions, 2004 Opel Signum should accelerate faster than 1973 Rover 3.5 Litre. With that said, vehicle weight also plays an important factor in acceleration. 1973 Rover 3.5 Litre weights approximately 75 kg more than 2004 Opel Signum.
Because 1973 Rover 3.5 Litre is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1973 Rover 3.5 Litre. However, in wet, icy, snow, or gravel driving conditions, 2004 Opel Signum, being front wheel drive (FWD), will offer much better control with better grip. 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 Rover 3.5 Litre (276 Nm @ 2600 RPM) has 11 more torque (in Nm) than 2004 Opel Signum. (265 Nm @ 2500 RPM). This means 1973 Rover 3.5 Litre will have an easier job in driving up hills or pulling heavy equipment than 2004 Opel Signum. 1973 Rover 3.5 Litre has automatic transmission and 2004 Opel Signum has manual transmission. 2004 Opel Signum will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1973 Rover 3.5 Litre will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2004 Opel Signum | 1973 Rover 3.5 Litre | |
| Make | Opel | Rover |
| Model | Signum | 3.5 Litre |
| Year Released | 2004 | 1973 |
| Engine Position | Front | Front |
| Engine Size | 1995 cc | 3532 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 173 HP | 150 HP |
| Engine RPM | 5500 RPM | 5000 RPM |
| Torque | 265 Nm | 276 Nm |
| Torque RPM | 2500 RPM | 2600 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1560 kg | 1635 kg |
| Vehicle Length | 4640 mm | 4750 mm |
| Vehicle Width | 1800 mm | 1790 mm |
| Vehicle Height | 1470 mm | 1550 mm |
| Wheelbase Size | 2840 mm | 2820 mm |
