2007 Audi A4 vs. 2005 Smart Roadster
To start off, 2007 Audi A4 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Smart Roadster. In addition, the cost of maintenance, including insurance, on 2005 Smart Roadster would be higher. At 3,123 cc, 2007 Audi A4 is equipped with a bigger engine. In terms of performance, 2007 Audi A4 (252 HP @ 5100 RPM) has 152 more horse power than 2005 Smart Roadster. (100 HP @ 5250 RPM). In normal driving conditions, 2007 Audi A4 should accelerate faster than 2005 Smart Roadster.
Let's talk about torque, 2007 Audi A4 (330 Nm @ 3250 RPM) has 200 more torque (in Nm) than 2005 Smart Roadster. (130 Nm @ 2500 RPM). This means 2007 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2005 Smart Roadster.
Compare all specifications:
| 2007 Audi A4 | 2005 Smart Roadster | |
| Make | Audi | Smart |
| Model | A4 | Roadster |
| Year Released | 2007 | 2005 |
| Body Type | Convertible | Roadster |
| Engine Position | Front | Rear |
| Engine Size | 3123 cc | 698 cc |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 252 HP | 100 HP |
| Engine RPM | 5100 RPM | 5250 RPM |
| Torque | 330 Nm | 130 Nm |
| Torque RPM | 3250 RPM | 2500 RPM |
| Engine Bore Size | 84.5 mm | 66.5 mm |
| Engine Stroke Size | 92.8 mm | 67 mm |
| Engine Compression Ratio | 12.5:1 | 9.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 250 km/hour | 190 km/hour |
| Acceleration 0-100mph | 6.8 seconds | 9.8 seconds |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Length | 4580 mm | 3430 mm |
| Vehicle Width | 1400 mm | 1620 mm |
| Vehicle Height | 1780 mm | 1200 mm |
| Wheelbase Size | 2660 mm | 2370 mm |
| Fuel Consumption Overall | 11 L/100km | 5.5 L/100km |
| Fuel Tank Capacity | 70 L | 35 L |
