2009 Audi A5 vs. 2004 BMW 645
To start off, 2009 Audi A5 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, 2004 BMW 645 (328 HP @ 6100 RPM) has 63 more horse power than 2009 Audi A5. (265 HP @ 6500 RPM) In normal driving conditions, 2004 BMW 645 should accelerate faster than 2009 Audi A5. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW 645 weights approximately 795 kg more than 2009 Audi A5. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi A5 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 A5 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 120 more torque (in Nm) than 2009 Audi A5. (330 Nm @ 3250 RPM). This means 2004 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A5. 2009 Audi A5 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 A5 will be easier to drive especially in heavy traffic.
Compare all specifications:
2009 Audi A5 | 2004 BMW 645 | |
Make | Audi | BMW |
Model | A5 | 645 |
Year Released | 2009 | 2004 |
Body Type | Coupe | Coupe |
Engine Position | Front | Front |
Engine Size | 3197 cc | 4398 cc |
Engine Cylinders | 6 cylinders | 8 cylinders |
Engine Type | V | V |
Valves per Cylinder | 4 valves | 4 valves |
Horse Power | 265 HP | 328 HP |
Engine RPM | 6500 RPM | 6100 RPM |
Torque | 330 Nm | 450 Nm |
Torque RPM | 3250 RPM | 3600 RPM |
Engine Compression Ratio | 10.5:1 | 10.0:1 |
Fuel Type | Gasoline | Gasoline - Premium |
Drive Type | 4WD | Rear |
Transmission Type | Automatic | Manual |
Number of Seats | 5 seats | 4 seats |
Number of Doors | 2 doors | 2 doors |
Vehicle Weight | 895 kg | 1690 kg |
Vehicle Length | 4630 mm | 4830 mm |
Vehicle Width | 1990 mm | 1860 mm |
Vehicle Height | 1380 mm | 1380 mm |
Wheelbase Size | 2760 mm | 2830 mm |
Fuel Consumption Overall | 11.8 L/100km | 12 L/100km |
Fuel Tank Capacity | 64 L | 70 L |