2004 Audi A4 vs. 2009 BMW 650
To start off, 2009 BMW 650 is newer by 5 year(s). Which means there will be less support and parts availability for 2004 Audi A4. In addition, the cost of maintenance, including insurance, on 2004 Audi A4 would be higher. At 4,799 cc (8 cylinders), 2009 BMW 650 is equipped with a bigger engine. In terms of performance, 2009 BMW 650 (362 HP @ 6300 RPM) has 142 more horse power than 2004 Audi A4. (220 HP @ 6200 RPM) In normal driving conditions, 2009 BMW 650 should accelerate faster than 2004 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW 650 weights approximately 165 kg more than 2004 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2009 BMW 650. In wet, icy, snow, or gravel driving conditions, 2004 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, 2009 BMW 650 (490 Nm) has 180 more torque (in Nm) than 2004 Audi A4. (310 Nm). This means 2009 BMW 650 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A4.
Compare all specifications:
| 2004 Audi A4 | 2009 BMW 650 | |
| Make | Audi | BMW |
| Model | A4 | 650 |
| Year Released | 2004 | 2009 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2976 cc | 4799 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 220 HP | 362 HP |
| Engine RPM | 6200 RPM | 6300 RPM |
| Torque | 310 Nm | 490 Nm |
| Engine Compression Ratio | 10.1:1 | 10.5:1 |
| Drive Type | 4WD | Rear |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1770 kg | 1935 kg |
| Vehicle Length | 4580 mm | 4830 mm |
| Vehicle Width | 1780 mm | 1860 mm |
| Vehicle Height | 1400 mm | 1380 mm |
| Wheelbase Size | 2660 mm | 2790 mm |
| Fuel Consumption Overall | 11.2 L/100km | 12.6 L/100km |
| Fuel Tank Capacity | 63 L | 70 L |
