1971 Opel Manta vs. 2002 Opel Signum
To start off, 2002 Opel Signum is newer by 31 year(s). Which means there will be less support and parts availability for 1971 Opel Manta. In addition, the cost of maintenance, including insurance, on 1971 Opel Manta would be higher. At 2,957 cc (6 cylinders), 2002 Opel Signum is equipped with a bigger engine. In terms of performance, 2002 Opel Signum (174 HP @ 4000 RPM) has 115 more horse power than 1971 Opel Manta. (59 HP @ 5400 RPM) In normal driving conditions, 2002 Opel Signum should accelerate faster than 1971 Opel Manta. With that said, vehicle weight also plays an important factor in acceleration. 2002 Opel Signum weights approximately 740 kg more than 1971 Opel Manta. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1971 Opel Manta 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 1971 Opel Manta. However, in wet, icy, snow, or gravel driving conditions, 2002 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, 2002 Opel Signum (377 Nm @ 1900 RPM) has 287 more torque (in Nm) than 1971 Opel Manta. (90 Nm @ 3000 RPM). This means 2002 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1971 Opel Manta.
Compare all specifications:
| 1971 Opel Manta | 2002 Opel Signum | |
| Make | Opel | Opel |
| Model | Manta | Signum |
| Year Released | 1971 | 2002 |
| Engine Position | Front | Front |
| Engine Size | 1196 cc | 2957 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 59 HP | 174 HP |
| Engine RPM | 5400 RPM | 4000 RPM |
| Torque | 90 Nm | 377 Nm |
| Torque RPM | 3000 RPM | 1900 RPM |
| Engine Bore Size | 79 mm | 87.5 mm |
| Engine Stroke Size | 61 mm | 82 mm |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Vehicle Weight | 930 kg | 1670 kg |
| Vehicle Length | 4300 mm | 4640 mm |
| Vehicle Width | 1640 mm | 1800 mm |
| Vehicle Height | 1360 mm | 1470 mm |
| Wheelbase Size | 2440 mm | 2840 mm |
