2004 Audi A3 vs. 2009 BMW 635
To start off, 2009 BMW 635 is newer by 5 year(s). Which means there will be less support and parts availability for 2004 Audi A3. In addition, the cost of maintenance, including insurance, on 2004 Audi A3 would be higher. At 3,189 cc (6 cylinders), 2004 Audi A3 is equipped with a bigger engine. In terms of performance, 2009 BMW 635 (282 HP @ 4400 RPM) has 30 more horse power than 2004 Audi A3. (252 HP @ 6300 RPM) In normal driving conditions, 2009 BMW 635 should accelerate faster than 2004 Audi A3.
Because 2004 Audi A3 is four wheel drive (4WD), it will have significant more traction and grip than 2009 BMW 635. In wet, icy, snow, or gravel driving conditions, 2004 Audi A3 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, 2009 BMW 635 (580 Nm @ 1750 RPM) has 260 more torque (in Nm) than 2004 Audi A3. (320 Nm @ 2500 RPM). This means 2009 BMW 635 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A3.
Compare all specifications:
| 2004 Audi A3 | 2009 BMW 635 | |
| Make | Audi | BMW |
| Model | A3 | 635 |
| Year Released | 2004 | 2009 |
| Body Type | Hatchback | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3189 cc | 2993 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 252 HP | 282 HP |
| Engine RPM | 6300 RPM | 4400 RPM |
| Torque | 320 Nm | 580 Nm |
| Torque RPM | 2500 RPM | 1750 RPM |
| Engine Bore Size | 84 mm | 84 mm |
| Engine Stroke Size | 95.9 mm | 90 mm |
| Engine Compression Ratio | 11.3:1 | 17.0:1 |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 6.3 seconds | 6.6 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Length | 4290 mm | 4830 mm |
| Vehicle Width | 1770 mm | 1860 mm |
| Vehicle Height | 1430 mm | 1380 mm |
| Wheelbase Size | 2470 mm | 2790 mm |
| Fuel Consumption Overall | 9.9 L/100km | 7.4 L/100km |
| Fuel Tank Capacity | 60 L | 70 L |
