1981 Alfa Romeo Alfa 6 vs. 2003 Opel Speedster
To start off, 2003 Opel Speedster is newer by 22 year(s). Which means there will be less support and parts availability for 1981 Alfa Romeo Alfa 6. In addition, the cost of maintenance, including insurance, on 1981 Alfa Romeo Alfa 6 would be higher. At 1,997 cc (6 cylinders), 1981 Alfa Romeo Alfa 6 is equipped with a bigger engine. In terms of performance, 2003 Opel Speedster (197 HP @ 5500 RPM) has 64 more horse power than 1981 Alfa Romeo Alfa 6. (133 HP @ 5600 RPM) In normal driving conditions, 2003 Opel Speedster should accelerate faster than 1981 Alfa Romeo Alfa 6. With that said, vehicle weight also plays an important factor in acceleration. 1981 Alfa Romeo Alfa 6 weights approximately 465 kg more than 2003 Opel Speedster.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 2003 Opel Speedster (250 Nm @ 1950 RPM) has 72 more torque (in Nm) than 1981 Alfa Romeo Alfa 6. (178 Nm @ 4500 RPM). This means 2003 Opel Speedster will have an easier job in driving up hills or pulling heavy equipment than 1981 Alfa Romeo Alfa 6.
Compare all specifications:
| 1981 Alfa Romeo Alfa 6 | 2003 Opel Speedster | |
| Make | Alfa Romeo | Opel |
| Model | Alfa 6 | Speedster |
| Year Released | 1981 | 2003 |
| Engine Position | Front | Middle |
| Engine Size | 1997 cc | 1993 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 133 HP | 197 HP |
| Engine RPM | 5600 RPM | 5500 RPM |
| Torque | 178 Nm | 250 Nm |
| Torque RPM | 4500 RPM | 1950 RPM |
| Engine Bore Size | 80 mm | 86 mm |
| Engine Stroke Size | 66.2 mm | 86 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Vehicle Weight | 1470 kg | 1005 kg |
| Vehicle Length | 4770 mm | 3790 mm |
| Vehicle Width | 1690 mm | 1710 mm |
| Vehicle Height | 1430 mm | 1120 mm |
| Wheelbase Size | 2610 mm | 2400 mm |
