2004 BMW 645 vs. 2009 Audi A4
To start off, 2009 Audi A4 is newer by 5 year(s). Which means there will be less support and parts availability for 2004 BMW 645. In addition, the cost of maintenance, including insurance, on 2004 BMW 645 would be higher. At 4,398 cc (8 cylinders), 2004 BMW 645 is equipped with a bigger engine. In terms of performance, both vehicles can yield 328 horse power. So under normal driving conditions, the acceleration of both vehicles should be relatively similar. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW 645 weights approximately 40 kg more than 2009 Audi A4.
Because 2009 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2004 BMW 645. In wet, icy, snow, or gravel driving conditions, 2009 Audi A4 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, 2004 BMW 645 (450 Nm @ 3600 RPM) has 10 more torque (in Nm) than 2009 Audi A4. (440 Nm @ 2900 RPM). This means 2004 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A4. 2009 Audi A4 has automatic transmission and 2004 BMW 645 has manual transmission. 2004 BMW 645 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Audi A4 will be easier to drive especially in heavy traffic.
Compare all specifications:
2004 BMW 645 | 2009 Audi A4 | |
Make | BMW | Audi |
Model | 645 | A4 |
Year Released | 2004 | 2009 |
Body Type | Coupe | Sedan |
Engine Position | Front | Front |
Engine Size | 4398 cc | 2995 cc |
Engine Cylinders | 8 cylinders | 6 cylinders |
Engine Type | V | V |
Valves per Cylinder | 4 valves | 4 valves |
Horse Power | 328 HP | 328 HP |
Engine RPM | 6100 RPM | 5500 RPM |
Torque | 450 Nm | 440 Nm |
Torque RPM | 3600 RPM | 2900 RPM |
Engine Bore Size | 92 mm | 84.6 mm |
Engine Stroke Size | 82.7 mm | 89 mm |
Engine Compression Ratio | 10.0:1 | 10.3:1 |
Fuel Type | Gasoline - Premium | Gasoline - Premium |
Acceleration 0-100mph | 5.6 seconds | 5.1 seconds |
Drive Type | Rear | 4WD |
Transmission Type | Manual | Automatic |
Number of Seats | 4 seats | 5 seats |
Number of Doors | 2 doors | 4 doors |
Vehicle Weight | 1690 kg | 1650 kg |
Vehicle Length | 4830 mm | 4720 mm |
Vehicle Width | 1860 mm | 1830 mm |
Vehicle Height | 1380 mm | 1410 mm |
Wheelbase Size | 2830 mm | 2820 mm |
Fuel Consumption Overall | 12 L/100km | 9.7 L/100km |