1963 Alfa Romeo Giulia vs. 1993 Opel Calibra
To start off, 1993 Opel Calibra is newer by 30 year(s). Which means there will be less support and parts availability for 1963 Alfa Romeo Giulia. In addition, the cost of maintenance, including insurance, on 1963 Alfa Romeo Giulia would be higher. At 2,498 cc (6 cylinders), 1993 Opel Calibra is equipped with a bigger engine. In terms of performance, 1993 Opel Calibra (170 HP) has 55 more horse power than 1963 Alfa Romeo Giulia. (115 HP) In normal driving conditions, 1993 Opel Calibra should accelerate faster than 1963 Alfa Romeo Giulia. With that said, vehicle weight also plays an important factor in acceleration. 1993 Opel Calibra weights approximately 230 kg more than 1963 Alfa Romeo Giulia. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1993 Opel Calibra (225 Nm @ 4200 RPM) has 80 more torque (in Nm) than 1963 Alfa Romeo Giulia. (145 Nm @ 4400 RPM). This means 1993 Opel Calibra will have an easier job in driving up hills or pulling heavy equipment than 1963 Alfa Romeo Giulia.
Compare all specifications:
| 1963 Alfa Romeo Giulia | 1993 Opel Calibra | |
| Make | Alfa Romeo | Opel |
| Model | Giulia | Calibra |
| Year Released | 1963 | 1993 |
| Engine Position | Front | Front |
| Engine Size | 1570 cc | 2498 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 115 HP | 170 HP |
| Torque | 145 Nm | 225 Nm |
| Torque RPM | 4400 RPM | 4200 RPM |
| Engine Bore Size | 78.1 mm | 81.6 mm |
| Engine Stroke Size | 82 mm | 79.6 mm |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1050 kg | 1280 kg |
| Vehicle Length | 4150 mm | 4500 mm |
| Vehicle Width | 1570 mm | 1700 mm |
| Vehicle Height | 1440 mm | 1330 mm |
| Wheelbase Size | 2520 mm | 2640 mm |
| Fuel Tank Capacity | 46 L | 63 L |
