2008 Audi A4 vs. 2004 BMW 630
To start off, 2008 Audi A4 is newer by 4 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 2,983 cc (6 cylinders), 2004 BMW 630 is equipped with a bigger engine. In terms of performance, 2004 BMW 630 (254 HP @ 6600 RPM) has 24 more horse power than 2008 Audi A4. (230 HP @ 4000 RPM) In normal driving conditions, 2004 BMW 630 should accelerate faster than 2008 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A4 weights approximately 18 kg more than 2004 BMW 630.
Because 2008 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2004 BMW 630. 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, 2008 Audi A4 (450 Nm @ 1400 RPM) has 150 more torque (in Nm) than 2004 BMW 630. (300 Nm @ 2500 RPM). This means 2008 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2004 BMW 630. 2004 BMW 630 has automatic transmission and 2008 Audi A4 has manual transmission. 2008 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2004 BMW 630 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2008 Audi A4 | 2004 BMW 630 | |
| Make | Audi | BMW |
| Model | A4 | 630 |
| Year Released | 2008 | 2004 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2967 cc | 2983 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 230 HP | 254 HP |
| Engine RPM | 4000 RPM | 6600 RPM |
| Torque | 450 Nm | 300 Nm |
| Torque RPM | 1400 RPM | 2500 RPM |
| Engine Bore Size | 83 mm | 85 mm |
| Engine Stroke Size | 91.4 mm | 88 mm |
| Engine Compression Ratio | 17.0:1 | 10.7:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 242 km/hour | 250 km/hour |
| Acceleration 0-100mph | 7.3 seconds | 7.2 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1794 kg | 1776 kg |
| Vehicle Length | 4580 mm | 4830 mm |
| Vehicle Width | 1780 mm | 1860 mm |
| Vehicle Height | 1400 mm | 1380 mm |
| Wheelbase Size | 2660 mm | 2730 mm |
| Fuel Consumption Overall | 8 L/100km | 9.9 L/100km |
| Fuel Tank Capacity | 63 L | 70 L |
