1968 Alfa Romeo GTA vs. 2005 Porsche 911
To start off, 2005 Porsche 911 is newer by 37 year(s). Which means there will be less support and parts availability for 1968 Alfa Romeo GTA. In addition, the cost of maintenance, including insurance, on 1968 Alfa Romeo GTA would be higher. At 3,587 cc (6 cylinders), 2005 Porsche 911 is equipped with a bigger engine. In terms of performance, 2005 Porsche 911 (321 HP @ 4250 RPM) has 228 more horse power than 1968 Alfa Romeo GTA. (93 HP @ 6000 RPM) In normal driving conditions, 2005 Porsche 911 should accelerate faster than 1968 Alfa Romeo GTA. With that said, vehicle weight also plays an important factor in acceleration. 2005 Porsche 911 weights approximately 695 kg more than 1968 Alfa Romeo GTA. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 1968 Alfa Romeo GTA. In wet, icy, snow, or gravel driving conditions, 2005 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, 2005 Porsche 911 (370 Nm @ 4250 RPM) has 230 more torque (in Nm) than 1968 Alfa Romeo GTA. (140 Nm @ 3200 RPM). This means 2005 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1968 Alfa Romeo GTA.
Compare all specifications:
| 1968 Alfa Romeo GTA | 2005 Porsche 911 | |
| Make | Alfa Romeo | Porsche |
| Model | GTA | 911 |
| Year Released | 1968 | 2005 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Rear |
| Engine Size | 1290 cc | 3587 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 93 HP | 321 HP |
| Engine RPM | 6000 RPM | 4250 RPM |
| Torque | 140 Nm | 370 Nm |
| Torque RPM | 3200 RPM | 4250 RPM |
| Engine Bore Size | 78 mm | 96 mm |
| Engine Stroke Size | 67.5 mm | 82.8 mm |
| Engine Compression Ratio | 9.0:1 | 11.3:1 |
| Top Speed | 175 km/hour | 285 km/hour |
| Drive Type | Rear | 4WD |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 790 kg | 1485 kg |
| Vehicle Length | 4090 mm | 4440 mm |
| Vehicle Width | 1590 mm | 1780 mm |
| Vehicle Height | 1320 mm | 1310 mm |
| Wheelbase Size | 2360 mm | 2360 mm |
| Fuel Tank Capacity | 46 L | 64 L |
