2008 BMW 318 vs. 2006 Smart Roadster
To start off, 2008 BMW 318 is newer by 2 year(s). Which means there will be less support and parts availability for 2006 Smart Roadster. In addition, the cost of maintenance, including insurance, on 2006 Smart Roadster would be higher. At 1,995 cc (4 cylinders), 2008 BMW 318 is equipped with a bigger engine. In terms of performance, 2008 BMW 318 (127 HP @ 3750 RPM) has 46 more horse power than 2006 Smart Roadster. (81 HP @ 5250 RPM). In normal driving conditions, 2008 BMW 318 should accelerate faster than 2006 Smart Roadster. With that said, vehicle weight also plays an important factor in acceleration. 2008 BMW 318 weights approximately 530 kg more than 2006 Smart Roadster. 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, 2008 BMW 318 (200 Nm @ 3750 RPM) has 90 more torque (in Nm) than 2006 Smart Roadster. (110 Nm @ 3000 RPM). This means 2008 BMW 318 will have an easier job in driving up hills or pulling heavy equipment than 2006 Smart Roadster. 2006 Smart Roadster has automatic transmission and 2008 BMW 318 has manual transmission. 2008 BMW 318 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 Smart Roadster will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2008 BMW 318 | 2006 Smart Roadster | |
| Make | BMW | Smart |
| Model | 318 | Roadster |
| Year Released | 2008 | 2006 |
| Body Type | Sedan | Roadster |
| Engine Position | Front | Rear |
| Engine Size | 1995 cc | 698 cc |
| Engine Cylinders | 4 cylinders | 3 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 127 HP | 81 HP |
| Engine RPM | 3750 RPM | 5250 RPM |
| Torque | 200 Nm | 110 Nm |
| Torque RPM | 3750 RPM | 3000 RPM |
| Engine Compression Ratio | 10.2:1 | 9.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 213 km/hour | 175 km/hour |
| Acceleration 0-100mph | 9.3 seconds | 10.9 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1395 kg | 865 kg |
| Vehicle Length | 4490 mm | 3430 mm |
| Vehicle Width | 1760 mm | 1620 mm |
| Vehicle Height | 1470 mm | 1200 mm |
| Wheelbase Size | 2730 mm | 2370 mm |
| Fuel Consumption Overall | 7.2 L/100km | 5.1 L/100km |
| Fuel Tank Capacity | 63 L | 35 L |
