1999 Opel Speedster vs. 1998 Alfa Romeo 155
To start off, 1999 Opel Speedster is newer by 1 year(s). Which means there will be less support and parts availability for 1998 Alfa Romeo 155. In addition, the cost of maintenance, including insurance, on 1998 Alfa Romeo 155 would be higher. At 2,199 cc (4 cylinders), 1999 Opel Speedster is equipped with a bigger engine. In terms of performance, 1999 Opel Speedster (147 HP @ 5800 RPM) has 29 more horse power than 1998 Alfa Romeo 155. (118 HP @ 6300 RPM). In normal driving conditions, 1999 Opel Speedster should accelerate faster than 1998 Alfa Romeo 155. With that said, vehicle weight also plays an important factor in acceleration. 1998 Alfa Romeo 155 weights approximately 325 kg more than 1999 Opel Speedster.
Because 1999 Opel Speedster 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 1999 Opel Speedster. However, in wet, icy, snow, or gravel driving conditions, 1998 Alfa Romeo 155, 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, 1999 Opel Speedster (202 Nm @ 4000 RPM) has 58 more torque (in Nm) than 1998 Alfa Romeo 155. (144 Nm @ 4500 RPM). This means 1999 Opel Speedster will have an easier job in driving up hills or pulling heavy equipment than 1998 Alfa Romeo 155.
Compare all specifications:
| 1999 Opel Speedster | 1998 Alfa Romeo 155 | |
| Make | Opel | Alfa Romeo |
| Model | Speedster | 155 |
| Year Released | 1999 | 1998 |
| Body Type | Convertible | Sedan |
| Engine Position | Middle | Front |
| Engine Size | 2199 cc | 1598 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 147 HP | 118 HP |
| Engine RPM | 5800 RPM | 6300 RPM |
| Torque | 202 Nm | 144 Nm |
| Torque RPM | 4000 RPM | 4500 RPM |
| Engine Bore Size | 86 mm | 82 mm |
| Engine Stroke Size | 94.6 mm | 75.7 mm |
| Engine Compression Ratio | 10.0:1 | 10.3:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 945 kg | 1270 kg |
| Vehicle Length | 3790 mm | 4450 mm |
| Vehicle Width | 1710 mm | 1710 mm |
| Vehicle Height | 1120 mm | 1450 mm |
