2003 BMW 645 vs. 2011 Audi Q5
To start off, 2011 Audi Q5 is newer by 8 year(s). Which means there will be less support and parts availability for 2003 BMW 645. In addition, the cost of maintenance, including insurance, on 2003 BMW 645 would be higher. At 4,398 cc (8 cylinders), 2003 BMW 645 is equipped with a bigger engine. In terms of performance, 2003 BMW 645 (321 HP @ 6100 RPM) has 51 more horse power than 2011 Audi Q5. (270 HP @ 6500 RPM). In normal driving conditions, 2003 BMW 645 should accelerate faster than 2011 Audi Q5. With that said, vehicle weight also plays an important factor in acceleration. 2011 Audi Q5 weights approximately 55 kg more than 2003 BMW 645.
Because 2011 Audi Q5 is all wheel drive (AWD), it will have significant more traction and grip than 2003 BMW 645. In wet, icy, snow, or gravel driving conditions, 2011 Audi Q5 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, 2003 BMW 645 (450 Nm @ 3600 RPM) has 121 more torque (in Nm) than 2011 Audi Q5. (329 Nm @ 3000 RPM). This means 2003 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2011 Audi Q5.
Compare all specifications:
| 2003 BMW 645 | 2011 Audi Q5 | |
| Make | BMW | Audi |
| Model | 645 | Q5 |
| Year Released | 2003 | 2011 |
| Body Type | Convertible | SUV |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 3200 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 321 HP | 270 HP |
| Engine RPM | 6100 RPM | 6500 RPM |
| Torque | 450 Nm | 329 Nm |
| Torque RPM | 3600 RPM | 3000 RPM |
| Drive Type | Rear | AWD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1895 kg | 1950 kg |
| Vehicle Length | 4830 mm | 4628 mm |
| Vehicle Width | 1860 mm | 1880 mm |
| Vehicle Height | 1380 mm | 1654 mm |
| Wheelbase Size | 2790 mm | 2807 mm |
| Fuel Consumption | 8.5 L/100km | 10.2 L/100km |
| Fuel Consumption City | 16.8 L/100km | 13.1 L/100km |
| Fuel Tank Capacity | 70 L | 75 L |
