2003 Alfa Romeo Spider vs. 2005 Mercedes-Benz Bionic Car Concept
To start off, 2005 Mercedes-Benz Bionic Car Concept is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Alfa Romeo Spider. In addition, the cost of maintenance, including insurance, on 2003 Alfa Romeo Spider would be higher. At 1,991 cc (4 cylinders), 2005 Mercedes-Benz Bionic Car Concept is equipped with a bigger engine. In terms of performance, 2003 Alfa Romeo Spider (148 HP @ 6300 RPM) has 10 more horse power than 2005 Mercedes-Benz Bionic Car Concept. (138 HP @ 4200 RPM). In normal driving conditions, 2003 Alfa Romeo Spider should accelerate faster than 2005 Mercedes-Benz Bionic Car Concept. With that said, vehicle weight also plays an important factor in acceleration. 2003 Alfa Romeo Spider weights approximately 165 kg more than 2005 Mercedes-Benz Bionic Car Concept. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2005 Mercedes-Benz Bionic Car Concept (300 Nm @ 1600 RPM) has 119 more torque (in Nm) than 2003 Alfa Romeo Spider. (181 Nm @ 3800 RPM). This means 2005 Mercedes-Benz Bionic Car Concept will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo Spider.
Compare all specifications:
| 2003 Alfa Romeo Spider | 2005 Mercedes-Benz Bionic Car Concept | |
| Make | Alfa Romeo | Mercedes-Benz |
| Model | Spider | Bionic Car Concept |
| Year Released | 2003 | 2005 |
| Engine Size | 1908 cc | 1991 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 148 HP | 138 HP |
| Engine RPM | 6300 RPM | 4200 RPM |
| Torque | 181 Nm | 300 Nm |
| Torque RPM | 3800 RPM | 1600 RPM |
| Engine Compression Ratio | 18.5:1 | 18.0:1 |
| Acceleration 0-100mph | 8.4 seconds | 8.2 seconds |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 3 doors |
| Vehicle Weight | 1430 kg | 1265 kg |
| Vehicle Length | 4180 mm | 4250 mm |
| Vehicle Width | 1790 mm | 1820 mm |
| Vehicle Height | 1320 mm | 1600 mm |
| Wheelbase Size | 2600 mm | 2570 mm |
| Fuel Tank Capacity | 69 L | 62 L |
