1999 Audi A4 vs. 2009 BMW X6
To start off, 2009 BMW X6 is newer by 10 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 2,977 cc (6 cylinders), 2009 BMW X6 is equipped with a bigger engine. In terms of performance, 2009 BMW X6 (300 HP @ 5800 RPM) has 177 more horse power than 1999 Audi A4. (123 HP @ 5800 RPM) In normal driving conditions, 2009 BMW X6 should accelerate faster than 1999 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW X6 weights approximately 880 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 2009 BMW X6 is four wheel drive (4WD), it will have significant more traction and grip than 1999 Audi A4. In wet, icy, snow, or gravel driving conditions, 2009 BMW X6 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 X6 (407 Nm @ 1400 RPM) has 239 more torque (in Nm) than 1999 Audi A4. (168 Nm @ 3500 RPM). This means 2009 BMW X6 will have an easier job in driving up hills or pulling heavy equipment than 1999 Audi A4.
Compare all specifications:
| 1999 Audi A4 | 2009 BMW X6 | |
| Make | Audi | BMW |
| Model | A4 | X6 |
| Year Released | 1999 | 2009 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 2977 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 123 HP | 300 HP |
| Engine RPM | 5800 RPM | 5800 RPM |
| Torque | 168 Nm | 407 Nm |
| Torque RPM | 3500 RPM | 1400 RPM |
| Engine Bore Size | 81 mm | 84 mm |
| Engine Stroke Size | 86.4 mm | 89.6 mm |
| Engine Compression Ratio | 10.3:1 | 10.2:1 |
| Top Speed | 198 km/hour | 240 km/hour |
| Acceleration 0-100mph | 12.3 seconds | 6.7 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1265 kg | 2145 kg |
| Vehicle Length | 4480 mm | 4880 mm |
| Vehicle Width | 1740 mm | 1990 mm |
| Vehicle Height | 1420 mm | 1700 mm |
| Wheelbase Size | 2620 mm | 2940 mm |
| Fuel Tank Capacity | 62 L | 85 L |
