1991 Alfa Romeo 75 vs. 1991 Opel Astra
To start off, both 1991 Alfa Romeo 75 and 1991 Opel Astra were released in the same year (1991). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 1,567 cc (4 cylinders), 1991 Alfa Romeo 75 is equipped with a bigger engine. In terms of performance, 1991 Alfa Romeo 75 (109 HP @ 6000 RPM) has 50 more horse power than 1991 Opel Astra. (59 HP @ 5200 RPM). In normal driving conditions, 1991 Alfa Romeo 75 should accelerate faster than 1991 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 1991 Alfa Romeo 75 weights approximately 85 kg more than 1991 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1991 Alfa Romeo 75 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1991 Alfa Romeo 75. However, in wet, icy, snow, or gravel driving conditions, 1991 Opel Astra, being front wheel drive (FWD), will offer much better control with better grip. 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, 1991 Alfa Romeo 75 (149 Nm @ 4000 RPM) has 45 more torque (in Nm) than 1991 Opel Astra. (104 Nm @ 2800 RPM). This means 1991 Alfa Romeo 75 will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Astra.
Compare all specifications:
| 1991 Alfa Romeo 75 | 1991 Opel Astra | |
| Make | Alfa Romeo | Opel |
| Model | 75 | Astra |
| Year Released | 1991 | 1991 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 1567 cc | 1389 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 109 HP | 59 HP |
| Engine RPM | 6000 RPM | 5200 RPM |
| Torque | 149 Nm | 104 Nm |
| Torque RPM | 4000 RPM | 2800 RPM |
| Engine Bore Size | 78 mm | 77.6 mm |
| Engine Stroke Size | 82 mm | 73.4 mm |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1060 kg | 975 kg |
| Vehicle Length | 4340 mm | 4280 mm |
| Vehicle Width | 1670 mm | 1690 mm |
| Vehicle Height | 1410 mm | 1480 mm |
| Wheelbase Size | 2520 mm | 2530 mm |
