2005 Audi A8 vs. 2003 Mazda Roadster
To start off, 2005 Audi A8 is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Mazda Roadster. In addition, the cost of maintenance, including insurance, on 2003 Mazda Roadster would be higher. At 4,134 cc (8 cylinders), 2005 Audi A8 is equipped with a bigger engine. In terms of performance, 2005 Audi A8 (322 HP @ 3750 RPM) has 174 more horse power than 2003 Mazda Roadster. (148 HP @ 7000 RPM). In normal driving conditions, 2005 Audi A8 should accelerate faster than 2003 Mazda Roadster. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A8 weights approximately 865 kg more than 2003 Mazda Roadster. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2003 Mazda Roadster. In wet, icy, snow, or gravel driving conditions, 2005 Audi A8 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, 2005 Audi A8 (650 Nm @ 1600 RPM) has 483 more torque (in Nm) than 2003 Mazda Roadster. (167 Nm @ 5500 RPM). This means 2005 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2003 Mazda Roadster.
Compare all specifications:
| 2005 Audi A8 | 2003 Mazda Roadster | |
| Make | Audi | Mazda |
| Model | A8 | Roadster |
| Year Released | 2005 | 2003 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4134 cc | 1838 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 322 HP | 148 HP |
| Engine RPM | 3750 RPM | 7000 RPM |
| Torque | 650 Nm | 167 Nm |
| Torque RPM | 1600 RPM | 5500 RPM |
| Engine Bore Size | 83 mm | 83 mm |
| Engine Stroke Size | 95.5 mm | 85 mm |
| Engine Compression Ratio | 16.5:1 | 10.5:1 |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1945 kg | 1080 kg |
| Vehicle Length | 5070 mm | 3960 mm |
| Vehicle Width | 1900 mm | 1690 mm |
| Vehicle Height | 1450 mm | 1240 mm |
| Wheelbase Size | 2950 mm | 2270 mm |
| Fuel Tank Capacity | 90 L | 48 L |
