1991 Alfa Romeo SZ vs. 2013 BMW 5 Series
To start off, 2013 BMW 5 Series is newer by 22 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 4,395 cc (8 cylinders), 2013 BMW 5 Series is equipped with a bigger engine. In terms of performance, 2013 BMW 5 Series (439 HP @ 5500 RPM) has 231 more horse power than 1991 Alfa Romeo SZ. (208 HP @ 6200 RPM) In normal driving conditions, 2013 BMW 5 Series should accelerate faster than 1991 Alfa Romeo SZ. With that said, vehicle weight also plays an important factor in acceleration. 2013 BMW 5 Series weights approximately 720 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, 2013 BMW 5 Series (651 Nm @ 4500 RPM) has 406 more torque (in Nm) than 1991 Alfa Romeo SZ. (245 Nm @ 4500 RPM). This means 2013 BMW 5 Series will have an easier job in driving up hills or pulling heavy equipment than 1991 Alfa Romeo SZ. 2013 BMW 5 Series has automatic transmission and 1991 Alfa Romeo SZ has manual transmission. 1991 Alfa Romeo SZ will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2013 BMW 5 Series will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1991 Alfa Romeo SZ | 2013 BMW 5 Series | |
| Make | Alfa Romeo | BMW |
| Model | SZ | 5 Series |
| Year Released | 1991 | 2013 |
| Engine Position | Front | Front |
| Engine Size | 2959 cc | 4395 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 208 HP | 439 HP |
| Engine RPM | 6200 RPM | 5500 RPM |
| Torque | 245 Nm | 651 Nm |
| Torque RPM | 4500 RPM | 4500 RPM |
| Engine Bore Size | 93 mm | 89 mm |
| Engine Stroke Size | 72.6 mm | 88 mm |
| Engine Compression Ratio | 10.0:1 | 10.0 :1 |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 233 km/hour | 250 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | 8-speed automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1260 kg | 1980 kg |
| Vehicle Length | 4670 mm | 4905 mm |
| Vehicle Width | 1740 mm | 2094 mm |
| Vehicle Height | 1320 mm | 1464 mm |
| Wheelbase Size | 2520 mm | 2968 mm |
| Fuel Tank Capacity | 50 L | 70 L |
