1986 Alfa Romeo 75 vs. 2009 Porsche 911
To start off, 2009 Porsche 911 is newer by 23 year(s). Which means there will be less support and parts availability for 1986 Alfa Romeo 75. In addition, the cost of maintenance, including insurance, on 1986 Alfa Romeo 75 would be higher. At 3,600 cc (6 cylinders), 2009 Porsche 911 is equipped with a bigger engine. In terms of performance, 2009 Porsche 911 (473 HP @ 6000 RPM) has 320 more horse power than 1986 Alfa Romeo 75. (153 HP @ 5800 RPM) In normal driving conditions, 2009 Porsche 911 should accelerate faster than 1986 Alfa Romeo 75. With that said, vehicle weight also plays an important factor in acceleration. 2009 Porsche 911 weights approximately 219 kg more than 1986 Alfa Romeo 75. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 1986 Alfa Romeo 75. In wet, icy, snow, or gravel driving conditions, 2009 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, 2009 Porsche 911 (620 Nm @ 1950 RPM) has 390 more torque (in Nm) than 1986 Alfa Romeo 75. (230 Nm @ 2600 RPM). This means 2009 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1986 Alfa Romeo 75.
Compare all specifications:
| 1986 Alfa Romeo 75 | 2009 Porsche 911 | |
| Make | Alfa Romeo | Porsche |
| Model | 75 | 911 |
| Year Released | 1986 | 2009 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Rear |
| Engine Size | 1779 cc | 3600 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 153 HP | 473 HP |
| Engine RPM | 5800 RPM | 6000 RPM |
| Torque | 230 Nm | 620 Nm |
| Torque RPM | 2600 RPM | 1950 RPM |
| Engine Bore Size | 80 mm | 100 mm |
| Engine Stroke Size | 88.5 mm | 76.4 mm |
| Engine Compression Ratio | 7.5:1 | 9.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 193 km/hour | 310 km/hour |
| Acceleration 0-100mph | 9.5 seconds | 4 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1206 kg | 1425 kg |
| Vehicle Length | 4340 mm | 4460 mm |
| Vehicle Width | 1640 mm | 1310 mm |
| Vehicle Height | 1360 mm | 1860 mm |
| Wheelbase Size | 2460 mm | 2360 mm |
| Fuel Consumption Overall | 7.6 L/100km | 12.9 L/100km |
| Fuel Tank Capacity | 68 L | 67 L |
