2005 Opel Astra vs. 2005 Smart Roadster
To start off, both 2005 Opel Astra and 2005 Smart Roadster were released in the same year (2005). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 1,598 cc (4 cylinders), 2005 Opel Astra is equipped with a bigger engine. In terms of performance, 2005 Opel Astra (102 HP @ 6000 RPM) has 21 more horse power than 2005 Smart Roadster. (81 HP @ 5250 RPM). In normal driving conditions, 2005 Opel Astra should accelerate faster than 2005 Smart Roadster. With that said, vehicle weight also plays an important factor in acceleration. 2005 Opel Astra weights approximately 357 kg more than 2005 Smart Roadster. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 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 2005 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 (147 Nm @ 3600 RPM) has 37 more torque (in Nm) than 2005 Smart Roadster. (110 Nm @ 2250 RPM). This means 2005 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2005 Smart Roadster.
Compare all specifications:
| 2005 Opel Astra | 2005 Smart Roadster | |
| Make | Opel | Smart |
| Model | Astra | Roadster |
| Year Released | 2005 | 2005 |
| Body Type | Station Wagon | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 1598 cc | 698 cc |
| Engine Cylinders | 4 cylinders | 3 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 102 HP | 81 HP |
| Engine RPM | 6000 RPM | 5250 RPM |
| Torque | 147 Nm | 110 Nm |
| Torque RPM | 3600 RPM | 2250 RPM |
| Engine Compression Ratio | 10.5:1 | 9.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 178 km/hour | 180 km/hour |
| Acceleration 0-100mph | 12 seconds | 10.9 seconds |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1245 kg | 888 kg |
| Vehicle Length | 4290 mm | 3430 mm |
| Vehicle Width | 1720 mm | 1620 mm |
| Vehicle Height | 1470 mm | 1200 mm |
| Wheelbase Size | 2530 mm | 2370 mm |
| Fuel Consumption Overall | 6.7 L/100km | 5.1 L/100km |
| Fuel Tank Capacity | 52 L | 35 L |
