2007 Audi Q7 vs. 2003 Smart Roadster
To start off, 2007 Audi Q7 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Smart Roadster. In addition, the cost of maintenance, including insurance, on 2003 Smart Roadster would be higher. At 2,967 cc (6 cylinders), 2007 Audi Q7 is equipped with a bigger engine. In terms of performance, 2007 Audi Q7 (229 HP @ 4000 RPM) has 148 more horse power than 2003 Smart Roadster. (81 HP @ 5250 RPM). In normal driving conditions, 2007 Audi Q7 should accelerate faster than 2003 Smart Roadster. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi Q7 weights approximately 1410 kg more than 2003 Smart Roadster. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Audi Q7 is four wheel drive (4WD), it will have significant more traction and grip than 2003 Smart Roadster. In wet, icy, snow, or gravel driving conditions, 2007 Audi Q7 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, 2007 Audi Q7 (501 Nm @ 1750 RPM) has 391 more torque (in Nm) than 2003 Smart Roadster. (110 Nm @ 2250 RPM). This means 2007 Audi Q7 will have an easier job in driving up hills or pulling heavy equipment than 2003 Smart Roadster. 2007 Audi Q7 has automatic transmission and 2003 Smart Roadster has manual transmission. 2003 Smart Roadster will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Audi Q7 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Audi Q7 | 2003 Smart Roadster | |
| Make | Audi | Smart |
| Model | Q7 | Roadster |
| Year Released | 2007 | 2003 |
| Body Type | SUV | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 2967 cc | 698 cc |
| Engine Cylinders | 6 cylinders | 3 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 229 HP | 81 HP |
| Engine RPM | 4000 RPM | 5250 RPM |
| Torque | 501 Nm | 110 Nm |
| Torque RPM | 1750 RPM | 2250 RPM |
| Engine Bore Size | 83 mm | 66.5 mm |
| Engine Stroke Size | 91.4 mm | 67 mm |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 210 km/hour | 180 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 2295 kg | 885 kg |
| Vehicle Length | 5090 mm | 3430 mm |
| Vehicle Width | 1990 mm | 1620 mm |
| Vehicle Height | 1740 mm | 1200 mm |
| Wheelbase Size | 3010 mm | 2370 mm |
| Fuel Consumption Overall | 10.5 L/100km | 5.1 L/100km |
