2007 Audi A3 vs. 2005 BMW 745
To start off, 2007 Audi A3 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 BMW 745. In addition, the cost of maintenance, including insurance, on 2005 BMW 745 would be higher. At 4,398 cc (8 cylinders), 2005 BMW 745 is equipped with a bigger engine. In terms of performance, 2005 BMW 745 (325 HP @ 6000 RPM) has 187 more horse power than 2007 Audi A3. (138 HP @ 4000 RPM) In normal driving conditions, 2005 BMW 745 should accelerate faster than 2007 Audi A3. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 745 weights approximately 505 kg more than 2007 Audi A3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Audi A3 is four wheel drive (4WD), it will have significant more traction and grip than 2005 BMW 745. In wet, icy, snow, or gravel driving conditions, 2007 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, 2005 BMW 745 (450 Nm @ 3600 RPM) has 130 more torque (in Nm) than 2007 Audi A3. (320 Nm @ 1750 RPM). This means 2005 BMW 745 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A3.
Compare all specifications:
| 2007 Audi A3 | 2005 BMW 745 | |
| Make | Audi | BMW |
| Model | A3 | 745 |
| Year Released | 2007 | 2005 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1967 cc | 4398 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 138 HP | 325 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 320 Nm | 450 Nm |
| Torque RPM | 1750 RPM | 3600 RPM |
| Engine Bore Size | 81 mm | 92.1 mm |
| Engine Stroke Size | 95.5 mm | 82.7 mm |
| Engine Compression Ratio | 18.0:1 | 10.5:1 |
| Fuel Type | Diesel | Gasoline |
| Acceleration 0-100mph | 9.4 seconds | 6.6 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 3 doors | 4 doors |
| Vehicle Weight | 1505 kg | 2010 kg |
| Wheelbase Size | 2580 mm | 3000 mm |
| Fuel Consumption Overall | 5.8 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 60 L | 88 L |
