1968 Alfa Romeo GT vs. 1992 Opel Calibra
To start off, 1992 Opel Calibra is newer by 24 year(s). Which means there will be less support and parts availability for 1968 Alfa Romeo GT. In addition, the cost of maintenance, including insurance, on 1968 Alfa Romeo GT would be higher. At 1,998 cc (4 cylinders), 1992 Opel Calibra is equipped with a bigger engine. In terms of performance, 1992 Opel Calibra (115 HP @ 5200 RPM) has 28 more horse power than 1968 Alfa Romeo GT. (87 HP @ 6000 RPM) In normal driving conditions, 1992 Opel Calibra should accelerate faster than 1968 Alfa Romeo GT. With that said, vehicle weight also plays an important factor in acceleration. 1992 Opel Calibra weights approximately 210 kg more than 1968 Alfa Romeo GT. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1992 Opel Calibra (173 Nm @ 2600 RPM) has 33 more torque (in Nm) than 1968 Alfa Romeo GT. (140 Nm @ 3200 RPM). This means 1992 Opel Calibra will have an easier job in driving up hills or pulling heavy equipment than 1968 Alfa Romeo GT.
Compare all specifications:
| 1968 Alfa Romeo GT | 1992 Opel Calibra | |
| Make | Alfa Romeo | Opel |
| Model | GT | Calibra |
| Year Released | 1968 | 1992 |
| Engine Position | Front | Front |
| Engine Size | 1289 cc | 1998 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 87 HP | 115 HP |
| Engine RPM | 6000 RPM | 5200 RPM |
| Torque | 140 Nm | 173 Nm |
| Torque RPM | 3200 RPM | 2600 RPM |
| Engine Bore Size | 78 mm | 86 mm |
| Engine Stroke Size | 67.5 mm | 86 mm |
| Engine Compression Ratio | 9.0:1 | 9.2:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 980 kg | 1190 kg |
| Vehicle Length | 4090 mm | 4500 mm |
| Vehicle Width | 1590 mm | 1700 mm |
| Vehicle Height | 1330 mm | 1610 mm |
| Wheelbase Size | 2160 mm | 2610 mm |
