2008 Audi A4 vs. 2005 BMW 645
To start off, 2008 Audi A4 is newer by 3 year(s). Which means there will be less support and parts availability for 2005 BMW 645. In addition, the cost of maintenance, including insurance, on 2005 BMW 645 would be higher. At 4,392 cc (8 cylinders), 2005 BMW 645 is equipped with a bigger engine. In terms of performance, 2005 BMW 645 (326 HP @ 6100 RPM) has 71 more horse power than 2008 Audi A4. (255 HP @ 6500 RPM) In normal driving conditions, 2005 BMW 645 should accelerate faster than 2008 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 645 weights approximately 585 kg more than 2008 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2005 BMW 645. In wet, icy, snow, or gravel driving conditions, 2008 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, 2005 BMW 645 (447 Nm @ 3600 RPM) has 117 more torque (in Nm) than 2008 Audi A4. (330 Nm @ 3250 RPM). This means 2005 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi A4. 2008 Audi A4 has automatic transmission and 2005 BMW 645 has manual transmission. 2005 BMW 645 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 Audi A4 will be easier to drive especially in heavy traffic.
Compare all specifications:
2008 Audi A4 | 2005 BMW 645 | |
Make | Audi | BMW |
Model | A4 | 645 |
Year Released | 2008 | 2005 |
Body Type | Convertible | Convertible |
Engine Position | Front | Front |
Engine Size | 3123 cc | 4392 cc |
Engine Cylinders | 6 cylinders | 8 cylinders |
Engine Type | V | V |
Valves per Cylinder | 4 valves | 4 valves |
Horse Power | 255 HP | 326 HP |
Engine RPM | 6500 RPM | 6100 RPM |
Torque | 330 Nm | 447 Nm |
Torque RPM | 3250 RPM | 3600 RPM |
Engine Compression Ratio | 12.5:1 | 10.5:1 |
Fuel Type | Gasoline - Premium | Gasoline - Premium |
Drive Type | 4WD | Rear |
Transmission Type | Automatic | Manual |
Number of Seats | 4 seats | 4 seats |
Number of Doors | 2 doors | 2 doors |
Vehicle Weight | 1310 kg | 1895 kg |
Vehicle Length | 4580 mm | 4830 mm |
Vehicle Width | 1780 mm | 1860 mm |
Vehicle Height | 1400 mm | 1380 mm |
Wheelbase Size | 2660 mm | 2890 mm |
Fuel Consumption | 9.4 L/100km | 10.2 L/100km |
Fuel Consumption City | 13.8 L/100km | 15.7 L/100km |
Fuel Consumption Overall | 11.8 L/100km | 12.8 L/100km |
Fuel Tank Capacity | 63 L | 70 L |