1975 Alfa Romeo GT vs. 1990 Porsche 928
To start off, 1990 Porsche 928 is newer by 15 year(s). Which means there will be less support and parts availability for 1975 Alfa Romeo GT. In addition, the cost of maintenance, including insurance, on 1975 Alfa Romeo GT would be higher. At 4,664 cc (8 cylinders), 1990 Porsche 928 is equipped with a bigger engine. In terms of performance, 1990 Porsche 928 (306 HP @ 5900 RPM) has 219 more horse power than 1975 Alfa Romeo GT. (87 HP @ 6000 RPM) In normal driving conditions, 1990 Porsche 928 should accelerate faster than 1975 Alfa Romeo GT. With that said, vehicle weight also plays an important factor in acceleration. 1990 Porsche 928 weights approximately 550 kg more than 1975 Alfa Romeo GT. 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, 1990 Porsche 928 (408 Nm @ 4100 RPM) has 268 more torque (in Nm) than 1975 Alfa Romeo GT. (140 Nm @ 3200 RPM). This means 1990 Porsche 928 will have an easier job in driving up hills or pulling heavy equipment than 1975 Alfa Romeo GT.
Compare all specifications:
| 1975 Alfa Romeo GT | 1990 Porsche 928 | |
| Make | Alfa Romeo | Porsche |
| Model | GT | 928 |
| Year Released | 1975 | 1990 |
| Engine Position | Front | Front |
| Engine Size | 1289 cc | 4664 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 87 HP | 306 HP |
| Engine RPM | 6000 RPM | 5900 RPM |
| Torque | 140 Nm | 408 Nm |
| Torque RPM | 3200 RPM | 4100 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 980 kg | 1530 kg |
| Vehicle Length | 4090 mm | 4450 mm |
| Vehicle Width | 1590 mm | 1840 mm |
| Vehicle Height | 1330 mm | 1290 mm |
| Wheelbase Size | 2160 mm | 2510 mm |
| Fuel Tank Capacity | 46 L | 76 L |
