2003 Alpina B3 vs. 2005 Smart Roadster
To start off, 2005 Smart Roadster is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Alpina B3. In addition, the cost of maintenance, including insurance, on 2003 Alpina B3 would be higher. At 3,300 cc (6 cylinders), 2003 Alpina B3 is equipped with a bigger engine. In terms of performance, 2003 Alpina B3 (276 HP @ 6300 RPM) has 175 more horse power than 2005 Smart Roadster. (101 HP @ 5250 RPM). In normal driving conditions, 2003 Alpina B3 should accelerate faster than 2005 Smart Roadster.
Because 2003 Alpina B3 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Smart Roadster. In wet, icy, snow, or gravel driving conditions, 2003 Alpina B3 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, 2003 Alpina B3 (335 Nm @ 4500 RPM) has 205 more torque (in Nm) than 2005 Smart Roadster. (130 Nm @ 2500 RPM). This means 2003 Alpina B3 will have an easier job in driving up hills or pulling heavy equipment than 2005 Smart Roadster.
Compare all specifications:
| 2003 Alpina B3 | 2005 Smart Roadster | |
| Make | Alpina | Smart |
| Model | B3 | Roadster |
| Year Released | 2003 | 2005 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 3300 cc | 698 cc |
| Engine Cylinders | 6 cylinders | 3 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 276 HP | 101 HP |
| Engine RPM | 6300 RPM | 5250 RPM |
| Torque | 335 Nm | 130 Nm |
| Torque RPM | 4500 RPM | 2500 RPM |
| Engine Compression Ratio | 10.0:1 | 9.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 254 km/hour | 195 km/hour |
| Acceleration 0-100mph | 7.2 seconds | 9.8 seconds |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Length | 4480 mm | 3430 mm |
| Vehicle Width | 1750 mm | 1620 mm |
| Vehicle Height | 1420 mm | 1200 mm |
| Wheelbase Size | 2730 mm | 2370 mm |
| Fuel Consumption Overall | 11.6 L/100km | 5.3 L/100km |
| Fuel Tank Capacity | 63 L | 35 L |
