1991 Alfa Romeo SZ vs. 2005 Mercedes-Benz Bionic Car Concept
To start off, 2005 Mercedes-Benz Bionic Car Concept is newer by 14 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 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 70 more horse power than 2005 Mercedes-Benz Bionic Car Concept. (138 HP @ 4200 RPM). In normal driving conditions, 1991 Alfa Romeo SZ should accelerate faster than 2005 Mercedes-Benz Bionic Car Concept. With that said, vehicle weight also plays an important factor in acceleration. 2005 Mercedes-Benz Bionic Car Concept weights approximately 5 kg more than 1991 Alfa Romeo SZ.
Let's talk about torque, 2005 Mercedes-Benz Bionic Car Concept (300 Nm @ 1600 RPM) has 55 more torque (in Nm) than 1991 Alfa Romeo SZ. (245 Nm @ 4500 RPM). This means 2005 Mercedes-Benz Bionic Car Concept will have an easier job in driving up hills or pulling heavy equipment than 1991 Alfa Romeo SZ.
Compare all specifications:
| 1991 Alfa Romeo SZ | 2005 Mercedes-Benz Bionic Car Concept | |
| Make | Alfa Romeo | Mercedes-Benz |
| Model | SZ | Bionic Car Concept |
| Year Released | 1991 | 2005 |
| Engine Size | 2959 cc | 1991 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 208 HP | 138 HP |
| Engine RPM | 6200 RPM | 4200 RPM |
| Torque | 245 Nm | 300 Nm |
| Torque RPM | 4500 RPM | 1600 RPM |
| Engine Compression Ratio | 10.0:1 | 18.0:1 |
| Top Speed | 233 km/hour | 185 km/hour |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1260 kg | 1265 kg |
| Vehicle Length | 4670 mm | 4250 mm |
| Vehicle Width | 1740 mm | 1820 mm |
| Vehicle Height | 1320 mm | 1600 mm |
| Wheelbase Size | 2520 mm | 2570 mm |
| Fuel Tank Capacity | 50 L | 62 L |
