1954 Alfa Romeo Giulietta vs. 1975 Porsche 911
To start off, 1975 Porsche 911 is newer by 21 year(s). Which means there will be less support and parts availability for 1954 Alfa Romeo Giulietta. In addition, the cost of maintenance, including insurance, on 1954 Alfa Romeo Giulietta would be higher. At 2,994 cc (6 cylinders), 1975 Porsche 911 is equipped with a bigger engine. In terms of performance, 1975 Porsche 911 (260 HP @ 5500 RPM) has 184 more horse power than 1954 Alfa Romeo Giulietta. (76 HP @ 6300 RPM) In normal driving conditions, 1975 Porsche 911 should accelerate faster than 1954 Alfa Romeo Giulietta. With that said, vehicle weight also plays an important factor in acceleration. 1975 Porsche 911 weights approximately 375 kg more than 1954 Alfa Romeo Giulietta. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 1975 Porsche 911 (343 Nm @ 4000 RPM) has 231 more torque (in Nm) than 1954 Alfa Romeo Giulietta. (112 Nm @ 4250 RPM). This means 1975 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1954 Alfa Romeo Giulietta.
Compare all specifications:
| 1954 Alfa Romeo Giulietta | 1975 Porsche 911 | |
| Make | Alfa Romeo | Porsche |
| Model | Giulietta | 911 |
| Year Released | 1954 | 1975 |
| Engine Position | Front | Rear |
| Engine Size | 1290 cc | 2994 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 76 HP | 260 HP |
| Engine RPM | 6300 RPM | 5500 RPM |
| Torque | 112 Nm | 343 Nm |
| Torque RPM | 4250 RPM | 4000 RPM |
| Engine Bore Size | 74 mm | 95.1 mm |
| Engine Stroke Size | 75 mm | 70.4 mm |
| Engine Compression Ratio | 8.0:1 | 6.5:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 820 kg | 1195 kg |
| Vehicle Length | 3990 mm | 4300 mm |
| Vehicle Width | 1540 mm | 1780 mm |
| Vehicle Height | 1330 mm | 1330 mm |
| Wheelbase Size | 2390 mm | 2270 mm |
| Fuel Tank Capacity | 53 L | 79 L |
