1983 Alfa Romeo 33 vs. 1996 Opel Calibra
To start off, 1996 Opel Calibra is newer by 13 year(s). Which means there will be less support and parts availability for 1983 Alfa Romeo 33. In addition, the cost of maintenance, including insurance, on 1983 Alfa Romeo 33 would be higher. At 1,998 cc (4 cylinders), 1996 Opel Calibra is equipped with a bigger engine. In terms of performance, 1996 Opel Calibra (115 HP @ 5200 RPM) has 37 more horse power than 1983 Alfa Romeo 33. (78 HP @ 6000 RPM) In normal driving conditions, 1996 Opel Calibra should accelerate faster than 1983 Alfa Romeo 33. With that said, vehicle weight also plays an important factor in acceleration. 1996 Opel Calibra weights approximately 280 kg more than 1983 Alfa Romeo 33. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1996 Opel Calibra (173 Nm @ 2600 RPM) has 60 more torque (in Nm) than 1983 Alfa Romeo 33. (113 Nm @ 3500 RPM). This means 1996 Opel Calibra will have an easier job in driving up hills or pulling heavy equipment than 1983 Alfa Romeo 33.
Compare all specifications:
| 1983 Alfa Romeo 33 | 1996 Opel Calibra | |
| Make | Alfa Romeo | Opel |
| Model | 33 | Calibra |
| Year Released | 1983 | 1996 |
| Engine Position | Front | Front |
| Engine Size | 1350 cc | 1998 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | boxer | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 78 HP | 115 HP |
| Engine RPM | 6000 RPM | 5200 RPM |
| Torque | 113 Nm | 173 Nm |
| Torque RPM | 3500 RPM | 2600 RPM |
| Engine Bore Size | 80 mm | 86.1 mm |
| Engine Stroke Size | 67.2 mm | 86 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 910 kg | 1190 kg |
| Vehicle Length | 4020 mm | 4500 mm |
| Vehicle Width | 1620 mm | 1700 mm |
| Vehicle Height | 1310 mm | 1610 mm |
| Wheelbase Size | 2520 mm | 2610 mm |
