1991 Alfa Romeo SZ vs. 1989 Ford Sierra
To start off, 1991 Alfa Romeo SZ is newer by 2 year(s). Which means there will be less support and parts availability for 1989 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1989 Ford Sierra would be higher. At 2,959 cc (6 cylinders), 1991 Alfa Romeo SZ is equipped with a bigger engine. In terms of performance, 1991 Alfa Romeo SZ (208 HP @ 6200 RPM) has 83 more horse power than 1989 Ford Sierra. (125 HP @ 5600 RPM). In normal driving conditions, 1991 Alfa Romeo SZ should accelerate faster than 1989 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1991 Alfa Romeo SZ weights approximately 132 kg more than 1989 Ford Sierra. 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, 1991 Alfa Romeo SZ (245 Nm @ 4500 RPM) has 71 more torque (in Nm) than 1989 Ford Sierra. (174 Nm @ 2500 RPM). This means 1991 Alfa Romeo SZ will have an easier job in driving up hills or pulling heavy equipment than 1989 Ford Sierra.
Compare all specifications:
| 1991 Alfa Romeo SZ | 1989 Ford Sierra | |
| Make | Alfa Romeo | Ford |
| Model | SZ | Sierra |
| Year Released | 1991 | 1989 |
| Engine Position | Front | Front |
| Engine Size | 2959 cc | 1998 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 208 HP | 125 HP |
| Engine RPM | 6200 RPM | 5600 RPM |
| Torque | 245 Nm | 174 Nm |
| Torque RPM | 4500 RPM | 2500 RPM |
| Engine Bore Size | 93 mm | 86 mm |
| Engine Stroke Size | 72.6 mm | 86 mm |
| Engine Compression Ratio | 10.0:1 | 10.3:1 |
| Top Speed | 233 km/hour | 195 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1260 kg | 1128 kg |
| Vehicle Length | 4670 mm | 4430 mm |
| Vehicle Width | 1740 mm | 1700 mm |
| Vehicle Height | 1320 mm | 1380 mm |
| Wheelbase Size | 2520 mm | 2530 mm |
| Fuel Tank Capacity | 50 L | 60 L |
