1999 Audi A4 vs. 2005 BMW 630
To start off, 2005 BMW 630 is newer by 6 year(s). Which means there will be less support and parts availability for 1999 Audi A4. In addition, the cost of maintenance, including insurance, on 1999 Audi A4 would be higher. At 2,999 cc (6 cylinders), 2005 BMW 630 is equipped with a bigger engine. In terms of performance, 2005 BMW 630 (254 HP @ 6600 RPM) has 7 more horse power than 1999 Audi A4. (247 HP @ 4150 RPM) In normal driving conditions, 2005 BMW 630 should accelerate faster than 1999 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 630 weights approximately 429 kg more than 1999 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 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 2005 BMW 630. However, in wet, icy, snow, or gravel driving conditions, 1999 Audi A4, 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, 1999 Audi A4 (321 Nm @ 1900 RPM) has 21 more torque (in Nm) than 2005 BMW 630. (300 Nm @ 2500 RPM). This means 1999 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW 630.
Compare all specifications:
| 1999 Audi A4 | 2005 BMW 630 | |
| Make | Audi | BMW |
| Model | A4 | 630 |
| Year Released | 1999 | 2005 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1896 cc | 2999 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 247 HP | 254 HP |
| Engine RPM | 4150 RPM | 6600 RPM |
| Torque | 321 Nm | 300 Nm |
| Torque RPM | 1900 RPM | 2500 RPM |
| Engine Bore Size | 79.5 mm | 85 mm |
| Engine Stroke Size | 95.5 mm | 88 mm |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 190 km/hour | 250 km/hour |
| Acceleration 0-100mph | 12.8 seconds | 6.9 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1335 kg | 1764 kg |
| Vehicle Length | 4480 mm | 4830 mm |
| Vehicle Width | 1740 mm | 1860 mm |
| Vehicle Height | 1420 mm | 1380 mm |
| Wheelbase Size | 2630 mm | 2670 mm |
| Fuel Tank Capacity | 62 L | 70 L |
