2005 Opel Astra vs. 2006 Smart Roadster
To start off, 2006 Smart Roadster is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Opel Astra. In addition, the cost of maintenance, including insurance, on 2005 Opel Astra would be higher. At 1,596 cc (4 cylinders), 2005 Opel Astra is equipped with a bigger engine. In terms of performance, 2005 Opel Astra (97 HP @ 6000 RPM) has 16 more horse power than 2006 Smart Roadster. (81 HP @ 5250 RPM). In normal driving conditions, 2005 Opel Astra should accelerate faster than 2006 Smart Roadster. With that said, vehicle weight also plays an important factor in acceleration. 2005 Opel Astra weights approximately 295 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.
Because 2006 Smart Roadster is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2006 Smart Roadster. However, in wet, icy, snow, or gravel driving conditions, 2005 Opel Astra, being front wheel drive (FWD), will offer much better control with better grip. 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, 2005 Opel Astra (142 Nm @ 3600 RPM) has 32 more torque (in Nm) than 2006 Smart Roadster. (110 Nm @ 3000 RPM). This means 2005 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2006 Smart Roadster. 2006 Smart Roadster has automatic transmission and 2005 Opel Astra has manual transmission. 2005 Opel Astra 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:
| 2005 Opel Astra | 2006 Smart Roadster | |
| Make | Opel | Smart |
| Model | Astra | Roadster |
| Year Released | 2005 | 2006 |
| Body Type | Sedan | Roadster |
| Engine Position | Front | Rear |
| Engine Size | 1596 cc | 698 cc |
| Engine Cylinders | 4 cylinders | 3 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 97 HP | 81 HP |
| Engine RPM | 6000 RPM | 5250 RPM |
| Torque | 142 Nm | 110 Nm |
| Torque RPM | 3600 RPM | 3000 RPM |
| Engine Compression Ratio | 9.8:1 | 9.0:1 |
| Top Speed | 193 km/hour | 175 km/hour |
| Acceleration 0-100mph | 11.5 seconds | 10.9 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1160 kg | 865 kg |
| Wheelbase Size | 2610 mm | 2370 mm |
| Fuel Consumption Overall | 7.8 L/100km | 5.1 L/100km |
| Fuel Tank Capacity | 52 L | 35 L |
