1999 Audi A4 vs. 2009 BMW X5
To start off, 2009 BMW X5 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 4,799 cc (8 cylinders), 2009 BMW X5 is equipped with a bigger engine. In terms of performance, 2009 BMW X5 (350 HP @ 6300 RPM) has 227 more horse power than 1999 Audi A4. (123 HP @ 5800 RPM) In normal driving conditions, 2009 BMW X5 should accelerate faster than 1999 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW X5 weights approximately 135 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.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. 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 X5 (476 Nm @ 3400 RPM) has 308 more torque (in Nm) than 1999 Audi A4. (168 Nm @ 3500 RPM). This means 2009 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 1999 Audi A4. 2009 BMW X5 has automatic transmission and 1999 Audi A4 has manual transmission. 1999 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 BMW X5 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1999 Audi A4 | 2009 BMW X5 | |
| Make | Audi | BMW |
| Model | A4 | X5 |
| Year Released | 1999 | 2009 |
| Body Type | Station Wagon | SUV |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 4799 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 123 HP | 350 HP |
| Engine RPM | 5800 RPM | 6300 RPM |
| Torque | 168 Nm | 476 Nm |
| Torque RPM | 3500 RPM | 3400 RPM |
| Engine Bore Size | 81 mm | 93 mm |
| Engine Stroke Size | 86.4 mm | 88.3 mm |
| Top Speed | 197 km/hour | 242 km/hour |
| Acceleration 0-100mph | 11.3 seconds | 6.5 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1390 kg | 1525 kg |
| Vehicle Length | 4480 mm | 4860 mm |
| Vehicle Width | 1740 mm | 1940 mm |
| Vehicle Height | 1420 mm | 1740 mm |
| Wheelbase Size | 2610 mm | 2940 mm |
| Fuel Tank Capacity | 60 L | 85 L |
