1990 Alfa Romeo SZ vs. 2005 BMW X5
To start off, 2005 BMW X5 is newer by 15 year(s). Which means there will be less support and parts availability for 1990 Alfa Romeo SZ. In addition, the cost of maintenance, including insurance, on 1990 Alfa Romeo SZ would be higher. At 2,957 cc (6 cylinders), 1990 Alfa Romeo SZ is equipped with a bigger engine. In terms of performance, 2005 BMW X5 (215 HP @ 4000 RPM) has 7 more horse power than 1990 Alfa Romeo SZ. (208 HP @ 6200 RPM) In normal driving conditions, 2005 BMW X5 should accelerate faster than 1990 Alfa Romeo SZ. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW X5 weights approximately 910 kg more than 1990 Alfa Romeo SZ. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 1990 Alfa Romeo SZ. In wet, icy, snow, or gravel driving conditions, 2005 BMW X5 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 BMW X5 (520 Nm @ 2000 RPM) has 275 more torque (in Nm) than 1990 Alfa Romeo SZ. (245 Nm @ 4500 RPM). This means 2005 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 1990 Alfa Romeo SZ.
Compare all specifications:
| 1990 Alfa Romeo SZ | 2005 BMW X5 | |
| Make | Alfa Romeo | BMW |
| Model | SZ | X5 |
| Year Released | 1990 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 2957 cc | 2926 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 208 HP | 215 HP |
| Engine RPM | 6200 RPM | 4000 RPM |
| Torque | 245 Nm | 520 Nm |
| Torque RPM | 4500 RPM | 2000 RPM |
| Engine Bore Size | 93 mm | 84 mm |
| Engine Stroke Size | 72.6 mm | 90 mm |
| Engine Compression Ratio | 9.5:1 | 18.0:1 |
| Fuel Type | Gasoline | Diesel |
| Top Speed | 230 km/hour | 210 km/hour |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1260 kg | 2170 kg |
| Vehicle Length | 4290 mm | 4670 mm |
| Vehicle Width | 1740 mm | 1880 mm |
| Vehicle Height | 1320 mm | 1720 mm |
| Wheelbase Size | 2520 mm | 2830 mm |
| Fuel Tank Capacity | 50 L | 93 L |
