2007 Audi A4 vs. 2009 BMW 650
To start off, 2009 BMW 650 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Audi A4. In addition, the cost of maintenance, including insurance, on 2007 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 145 more horse power than 2007 Audi A4. (217 HP @ 5900 RPM) In normal driving conditions, 2009 BMW 650 should accelerate faster than 2007 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A4 weights approximately 70 kg more than 2009 BMW 650.
Because 2007 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, 2007 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 @ 3600 RPM) has 190 more torque (in Nm) than 2007 Audi A4. (300 Nm @ 2200 RPM). This means 2009 BMW 650 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A4.
Compare all specifications:
| 2007 Audi A4 | 2009 BMW 650 | |
| Make | Audi | BMW |
| Model | A4 | 650 |
| Year Released | 2007 | 2009 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1984 cc | 4799 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 217 HP | 362 HP |
| Engine RPM | 5900 RPM | 6300 RPM |
| Torque | 300 Nm | 490 Nm |
| Torque RPM | 2200 RPM | 3600 RPM |
| Engine Compression Ratio | 10.5:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 239 km/hour | 250 km/hour |
| Acceleration 0-100mph | 6.9 seconds | 6 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1595 kg | 1525 kg |
| Vehicle Length | 4550 mm | 4830 mm |
| Vehicle Width | 1780 mm | 1380 mm |
| Vehicle Height | 1400 mm | 1860 mm |
| Wheelbase Size | 2660 mm | 2790 mm |
| Fuel Consumption Overall | 9 L/100km | 9.3 L/100km |
| Fuel Tank Capacity | 63 L | 70 L |
