2007 Opel Signum vs. 1975 Opel Kadett
To start off, 2007 Opel Signum is newer by 32 year(s). Which means there will be less support and parts availability for 1975 Opel Kadett. In addition, the cost of maintenance, including insurance, on 1975 Opel Kadett would be higher. At 2,196 cc (4 cylinders), 2007 Opel Signum is equipped with a bigger engine. In terms of performance, 2007 Opel Signum (153 HP @ 5600 RPM) has 102 more horse power than 1975 Opel Kadett. (51 HP @ 5600 RPM). In normal driving conditions, 2007 Opel Signum should accelerate faster than 1975 Opel Kadett. With that said, vehicle weight also plays an important factor in acceleration. 2007 Opel Signum weights approximately 715 kg more than 1975 Opel Kadett. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1975 Opel Kadett 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 1975 Opel Kadett. However, in wet, icy, snow, or gravel driving conditions, 2007 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, 2007 Opel Signum (220 Nm @ 3800 RPM) has 139 more torque (in Nm) than 1975 Opel Kadett. (81 Nm @ 3400 RPM). This means 2007 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1975 Opel Kadett. 1975 Opel Kadett has automatic transmission and 2007 Opel Signum has manual transmission. 2007 Opel Signum will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1975 Opel Kadett will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Opel Signum | 1975 Opel Kadett | |
| Make | Opel | Opel |
| Model | Signum | Kadett |
| Year Released | 2007 | 1975 |
| Body Type | Hatchback | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2196 cc | 1196 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 153 HP | 51 HP |
| Engine RPM | 5600 RPM | 5600 RPM |
| Torque | 220 Nm | 81 Nm |
| Torque RPM | 3800 RPM | 3400 RPM |
| Engine Bore Size | 86 mm | 79 mm |
| Engine Stroke Size | 94.6 mm | 61 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 3 doors |
| Vehicle Weight | 1535 kg | 820 kg |
| Vehicle Length | 4640 mm | 4150 mm |
| Vehicle Width | 1800 mm | 1590 mm |
| Vehicle Height | 1470 mm | 1340 mm |
| Wheelbase Size | 2840 mm | 2410 mm |
| Fuel Tank Capacity | 60 L | 43 L |
