2007 Audi A4 vs. 2003 Mazda Roadster
To start off, 2007 Audi A4 is newer by 4 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 1,968 cc (4 cylinders), 2007 Audi A4 is equipped with a bigger engine. In terms of performance, 2003 Mazda Roadster (148 HP @ 7000 RPM) has 10 more horse power than 2007 Audi A4. (138 HP @ 4000 RPM) In normal driving conditions, 2003 Mazda Roadster should accelerate faster than 2007 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A4 weights approximately 456 kg more than 2003 Mazda Roadster.
Because 2003 Mazda 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 2003 Mazda Roadster. However, in wet, icy, snow, or gravel driving conditions, 2007 Audi A4, 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, 2007 Audi A4 (320 Nm @ 1750 RPM) has 153 more torque (in Nm) than 2003 Mazda Roadster. (167 Nm @ 5500 RPM). This means 2007 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2003 Mazda Roadster.
Compare all specifications:
| 2007 Audi A4 | 2003 Mazda Roadster | |
| Make | Audi | Mazda |
| Model | A4 | Roadster |
| Year Released | 2007 | 2003 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1968 cc | 1838 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 138 HP | 148 HP |
| Engine RPM | 4000 RPM | 7000 RPM |
| Torque | 320 Nm | 167 Nm |
| Torque RPM | 1750 RPM | 5500 RPM |
| Engine Bore Size | 81 mm | 83 mm |
| Engine Stroke Size | 95.5 mm | 85 mm |
| Engine Compression Ratio | 18.0:1 | 10.5:1 |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1536 kg | 1080 kg |
| Vehicle Length | 4590 mm | 3960 mm |
| Vehicle Width | 1780 mm | 1690 mm |
| Vehicle Height | 1430 mm | 1240 mm |
| Wheelbase Size | 2650 mm | 2270 mm |
| Fuel Tank Capacity | 70 L | 48 L |
