1973 Mazda RX-4 vs. 2005 Opel Signum
To start off, 2005 Opel Signum is newer by 32 year(s). Which means there will be less support and parts availability for 1973 Mazda RX-4. In addition, the cost of maintenance, including insurance, on 1973 Mazda RX-4 would be higher. At 2,616 cc, 1973 Mazda RX-4 is equipped with a bigger engine. In terms of performance, 2005 Opel Signum (120 HP @ 6000 RPM) has 6 more horse power than 1973 Mazda RX-4. (114 HP @ 6000 RPM) In normal driving conditions, 2005 Opel Signum should accelerate faster than 1973 Mazda RX-4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Opel Signum weights approximately 372 kg more than 1973 Mazda RX-4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1973 Mazda RX-4 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 Mazda RX-4. However, in wet, icy, snow, or gravel driving conditions, 2005 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, both vehicles can yield 165 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles.
Compare all specifications:
| 1973 Mazda RX-4 | 2005 Opel Signum | |
| Make | Mazda | Opel |
| Model | RX-4 | Signum |
| Year Released | 1973 | 2005 |
| Body Type | Coupe | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2616 cc | 1796 cc |
| Engine Type | dual-disk rotary | in-line |
| Horse Power | 114 HP | 120 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 165 Nm | 165 Nm |
| Torque RPM | 4000 RPM | 3800 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1110 kg | 1482 kg |
| Vehicle Length | 4400 mm | 4640 mm |
| Vehicle Width | 1670 mm | 1800 mm |
| Vehicle Height | 1390 mm | 1470 mm |
| Wheelbase Size | 2520 mm | 2840 mm |
