1975 Opel Kadett vs. 2006 Opel Signum
To start off, 2006 Opel Signum is newer by 31 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 2,958 cc (6 cylinders), 2006 Opel Signum is equipped with a bigger engine. In terms of performance, 2006 Opel Signum (175 HP @ 4000 RPM) has 124 more horse power than 1975 Opel Kadett. (51 HP @ 5600 RPM) In normal driving conditions, 2006 Opel Signum should accelerate faster than 1975 Opel Kadett. With that said, vehicle weight also plays an important factor in acceleration. 2006 Opel Signum weights approximately 880 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, 2006 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, 2006 Opel Signum (370 Nm @ 1900 RPM) has 290 more torque (in Nm) than 1975 Opel Kadett. (80 Nm @ 3400 RPM). This means 2006 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1975 Opel Kadett. 2006 Opel Signum has automatic transmission and 1975 Opel Kadett has manual transmission. 1975 Opel Kadett will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 Opel Signum will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1975 Opel Kadett | 2006 Opel Signum | |
| Make | Opel | Opel |
| Model | Kadett | Signum |
| Year Released | 1975 | 2006 |
| Body Type | Coupe | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1196 cc | 2958 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 51 HP | 175 HP |
| Engine RPM | 5600 RPM | 4000 RPM |
| Torque | 80 Nm | 370 Nm |
| Torque RPM | 3400 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 | Automatic |
| Number of Doors | 3 doors | 5 doors |
| Vehicle Weight | 790 kg | 1670 kg |
| Vehicle Length | 4140 mm | 4640 mm |
| Vehicle Width | 1590 mm | 1800 mm |
| Vehicle Height | 1290 mm | 1470 mm |
| Wheelbase Size | 2410 mm | 2840 mm |
| Fuel Tank Capacity | 43 L | 60 L |
