1981 BMW 628 vs. 1983 Opel Kadett
To start off, 1983 Opel Kadett is newer by 2 year(s). Which means there will be less support and parts availability for 1981 BMW 628. In addition, the cost of maintenance, including insurance, on 1981 BMW 628 would be higher. At 2,788 cc (6 cylinders), 1981 BMW 628 is equipped with a bigger engine. In terms of performance, 1981 BMW 628 (181 HP @ 6000 RPM) has 67 more horse power than 1983 Opel Kadett. (114 HP @ 5800 RPM). In normal driving conditions, 1981 BMW 628 should accelerate faster than 1983 Opel Kadett. With that said, vehicle weight also plays an important factor in acceleration. 1981 BMW 628 weights approximately 480 kg more than 1983 Opel Kadett. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1981 BMW 628 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 1981 BMW 628. However, in wet, icy, snow, or gravel driving conditions, 1983 Opel Kadett, 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, 1981 BMW 628 (240 Nm @ 4000 RPM) has 92 more torque (in Nm) than 1983 Opel Kadett. (148 Nm @ 4800 RPM). This means 1981 BMW 628 will have an easier job in driving up hills or pulling heavy equipment than 1983 Opel Kadett.
Compare all specifications:
| 1981 BMW 628 | 1983 Opel Kadett | |
| Make | BMW | Opel |
| Model | 628 | Kadett |
| Year Released | 1981 | 1983 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2788 cc | 1796 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 181 HP | 114 HP |
| Engine RPM | 6000 RPM | 5800 RPM |
| Torque | 240 Nm | 148 Nm |
| Torque RPM | 4000 RPM | 4800 RPM |
| Engine Bore Size | 86 mm | 84.9 mm |
| Engine Stroke Size | 80 mm | 79.5 mm |
| Engine Compression Ratio | 9.3:1 | 9.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Front |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1470 kg | 990 kg |
| Vehicle Length | 4760 mm | 4010 mm |
| Vehicle Width | 1730 mm | 1650 mm |
| Vehicle Height | 1370 mm | 1390 mm |
| Wheelbase Size | 2640 mm | 2520 mm |
| Fuel Tank Capacity | 70 L | 40 L |
