2003 Alpina Roadster 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 Alpina Roadster. In addition, the cost of maintenance, including insurance, on 2003 Alpina Roadster would be higher. At 3,346 cc (6 cylinders), 2003 Alpina Roadster is equipped with a bigger engine. In terms of performance, 2003 Alpina Roadster (301 HP @ 6300 RPM) has 163 more horse power than 2005 Mercedes-Benz Bionic Car Concept. (138 HP @ 4200 RPM). In normal driving conditions, 2003 Alpina Roadster should accelerate faster than 2005 Mercedes-Benz Bionic Car Concept. With that said, vehicle weight also plays an important factor in acceleration. 2003 Alpina Roadster weights approximately 361 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, 2003 Alpina Roadster (362 Nm @ 4800 RPM) has 62 more torque (in Nm) than 2005 Mercedes-Benz Bionic Car Concept. (300 Nm @ 1600 RPM). This means 2003 Alpina Roadster will have an easier job in driving up hills or pulling heavy equipment than 2005 Mercedes-Benz Bionic Car Concept.
Compare all specifications:
| 2003 Alpina Roadster | 2005 Mercedes-Benz Bionic Car Concept | |
| Make | Alpina | Mercedes-Benz |
| Model | Roadster | Bionic Car Concept |
| Year Released | 2003 | 2005 |
| Engine Size | 3346 cc | 1991 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 301 HP | 138 HP |
| Engine RPM | 6300 RPM | 4200 RPM |
| Torque | 362 Nm | 300 Nm |
| Torque RPM | 4800 RPM | 1600 RPM |
| Engine Compression Ratio | 10.0:1 | 18.0:1 |
| Acceleration 0-100mph | 5.4 seconds | 8.2 seconds |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 3 doors |
| Vehicle Weight | 1626 kg | 1265 kg |
| Vehicle Length | 4100 mm | 4250 mm |
| Vehicle Width | 1790 mm | 1820 mm |
| Vehicle Height | 1310 mm | 1600 mm |
| Wheelbase Size | 2500 mm | 2570 mm |
| Fuel Tank Capacity | 55 L | 62 L |
