1991 Alfa Romeo SZ vs. 2005 Porsche Carrera GT
To start off, 2005 Porsche Carrera GT is newer by 14 year(s). Which means there will be less support and parts availability for 1991 Alfa Romeo SZ. In addition, the cost of maintenance, including insurance, on 1991 Alfa Romeo SZ would be higher. At 5,733 cc (10 cylinders), 2005 Porsche Carrera GT is equipped with a bigger engine. In terms of performance, 2005 Porsche Carrera GT (604 HP @ 8000 RPM) has 396 more horse power than 1991 Alfa Romeo SZ. (208 HP @ 6200 RPM) In normal driving conditions, 2005 Porsche Carrera GT should accelerate faster than 1991 Alfa Romeo SZ. With that said, vehicle weight also plays an important factor in acceleration. 2005 Porsche Carrera GT weights approximately 120 kg more than 1991 Alfa Romeo SZ. 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, 2005 Porsche Carrera GT (590 Nm @ 5750 RPM) has 345 more torque (in Nm) than 1991 Alfa Romeo SZ. (245 Nm @ 4500 RPM). This means 2005 Porsche Carrera GT will have an easier job in driving up hills or pulling heavy equipment than 1991 Alfa Romeo SZ.
Compare all specifications:
| 1991 Alfa Romeo SZ | 2005 Porsche Carrera GT | |
| Make | Alfa Romeo | Porsche |
| Model | SZ | Carrera GT |
| Year Released | 1991 | 2005 |
| Engine Position | Front | Middle |
| Engine Size | 2959 cc | 5733 cc |
| Engine Cylinders | 6 cylinders | 10 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 208 HP | 604 HP |
| Engine RPM | 6200 RPM | 8000 RPM |
| Torque | 245 Nm | 590 Nm |
| Torque RPM | 4500 RPM | 5750 RPM |
| Engine Bore Size | 93 mm | 98 mm |
| Engine Stroke Size | 72.6 mm | 76 mm |
| Engine Compression Ratio | 10.0:1 | 12.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 233 km/hour | 330 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1260 kg | 1380 kg |
| Vehicle Length | 4670 mm | 4620 mm |
| Vehicle Width | 1740 mm | 1930 mm |
| Vehicle Height | 1320 mm | 1170 mm |
| Wheelbase Size | 2520 mm | 2860 mm |
| Fuel Tank Capacity | 50 L | 92 L |
