1977 Alfa Romeo Giulietta vs. 2011 Porsche 911
To start off, 2011 Porsche 911 is newer by 34 year(s). Which means there will be less support and parts availability for 1977 Alfa Romeo Giulietta. In addition, the cost of maintenance, including insurance, on 1977 Alfa Romeo Giulietta would be higher. At 3,800 cc (6 cylinders), 2011 Porsche 911 is equipped with a bigger engine. In terms of performance, 2011 Porsche 911 (500 HP @ 6000 RPM) has 392 more horse power than 1977 Alfa Romeo Giulietta. (108 HP @ 5600 RPM) In normal driving conditions, 2011 Porsche 911 should accelerate faster than 1977 Alfa Romeo Giulietta. With that said, vehicle weight also plays an important factor in acceleration. 2011 Porsche 911 weights approximately 575 kg more than 1977 Alfa Romeo Giulietta. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2011 Porsche 911 is all wheel drive (AWD), it will have significant more traction and grip than 1977 Alfa Romeo Giulietta. In wet, icy, snow, or gravel driving conditions, 2011 Porsche 911 will offer significantly more control. 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, 2011 Porsche 911 (650 Nm @ 1950 RPM) has 506 more torque (in Nm) than 1977 Alfa Romeo Giulietta. (144 Nm @ 4300 RPM). This means 2011 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1977 Alfa Romeo Giulietta.
Compare all specifications:
| 1977 Alfa Romeo Giulietta | 2011 Porsche 911 | |
| Make | Alfa Romeo | Porsche |
| Model | Giulietta | 911 |
| Year Released | 1977 | 2011 |
| Engine Position | Front | Rear |
| Engine Size | 1570 cc | 3800 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 108 HP | 500 HP |
| Engine RPM | 5600 RPM | 6000 RPM |
| Torque | 144 Nm | 650 Nm |
| Torque RPM | 4300 RPM | 1950 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | AWD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1070 kg | 1645 kg |
| Vehicle Length | 4220 mm | 4478 mm |
| Vehicle Width | 1660 mm | 1852 mm |
| Vehicle Height | 1410 mm | 1300 mm |
| Wheelbase Size | 2520 mm | 2350 mm |
| Fuel Tank Capacity | 53 L | 67 L |
