1978 Alfa Romeo Giulietta vs. 2005 Porsche 911
To start off, 2005 Porsche 911 is newer by 27 year(s). Which means there will be less support and parts availability for 1978 Alfa Romeo Giulietta. In addition, the cost of maintenance, including insurance, on 1978 Alfa Romeo Giulietta would be higher. At 3,605 cc (6 cylinders), 2005 Porsche 911 is equipped with a bigger engine. In terms of performance, 2005 Porsche 911 (445 HP @ 6000 RPM) has 337 more horse power than 1978 Alfa Romeo Giulietta. (108 HP @ 5600 RPM) In normal driving conditions, 2005 Porsche 911 should accelerate faster than 1978 Alfa Romeo Giulietta. With that said, vehicle weight also plays an important factor in acceleration. 2005 Porsche 911 weights approximately 519 kg more than 1978 Alfa Romeo Giulietta. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2005 Porsche 911 (620 Nm) has 477 more torque (in Nm) than 1978 Alfa Romeo Giulietta. (143 Nm). This means 2005 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1978 Alfa Romeo Giulietta.
Compare all specifications:
| 1978 Alfa Romeo Giulietta | 2005 Porsche 911 | |
| Make | Alfa Romeo | Porsche |
| Model | Giulietta | 911 |
| Year Released | 1978 | 2005 |
| Engine Position | Front | Rear |
| Engine Size | 1570 cc | 3605 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 108 HP | 445 HP |
| Engine RPM | 5600 RPM | 6000 RPM |
| Torque | 143 Nm | 620 Nm |
| Engine Bore Size | 78 mm | 100 mm |
| Engine Stroke Size | 82 mm | 76 mm |
| Engine Compression Ratio | 9.0:1 | 9.4:1 |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1071 kg | 1590 kg |
| Vehicle Length | 4220 mm | 4440 mm |
| Vehicle Width | 1660 mm | 1840 mm |
| Vehicle Height | 1410 mm | 1300 mm |
| Wheelbase Size | 2460 mm | 2360 mm |
| Fuel Tank Capacity | 53 L | 63 L |
