2007 Audi A6 vs. 2004 BMW 630
To start off, 2007 Audi A6 is newer by 3 year(s). Which means there will be less support and parts availability for 2004 BMW 630. In addition, the cost of maintenance, including insurance, on 2004 BMW 630 would be higher. At 3,698 cc (6 cylinders), 2007 Audi A6 is equipped with a bigger engine. In terms of performance, 2004 BMW 630 (254 HP @ 6600 RPM) has 76 more horse power than 2007 Audi A6. (178 HP @ 3300 RPM) In normal driving conditions, 2004 BMW 630 should accelerate faster than 2007 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW 630 weights approximately 121 kg more than 2007 Audi A6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 BMW 630 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2004 BMW 630. However, in wet, icy, snow, or gravel driving conditions, 2007 Audi A6, being front wheel drive (FWD), will offer much better control with better grip. 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, 2007 Audi A6 (380 Nm @ 1400 RPM) has 80 more torque (in Nm) than 2004 BMW 630. (300 Nm @ 2500 RPM). This means 2007 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2004 BMW 630.
Compare all specifications:
| 2007 Audi A6 | 2004 BMW 630 | |
| Make | Audi | BMW |
| Model | A6 | 630 |
| Year Released | 2007 | 2004 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3698 cc | 2983 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 178 HP | 254 HP |
| Engine RPM | 3300 RPM | 6600 RPM |
| Torque | 380 Nm | 300 Nm |
| Torque RPM | 1400 RPM | 2500 RPM |
| Engine Bore Size | 83 mm | 85 mm |
| Engine Stroke Size | 83.1 mm | 88 mm |
| Engine Compression Ratio | 17.0:1 | 10.7:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 225 km/hour | 250 km/hour |
| Acceleration 0-100mph | 8.3 seconds | 7.2 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1655 kg | 1776 kg |
| Vehicle Length | 4920 mm | 4830 mm |
| Vehicle Width | 1470 mm | 1860 mm |
| Vehicle Height | 1860 mm | 1380 mm |
| Wheelbase Size | 2850 mm | 2730 mm |
| Fuel Consumption Overall | 7.2 L/100km | 9.9 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
