2006 Audi A4 vs. 2006 BMW 645
To start off, both 2006 Audi A4 and 2006 BMW 645 were released in the same year (2006). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 4,398 cc (8 cylinders), 2006 BMW 645 is equipped with a bigger engine. In terms of performance, 2006 BMW 645 (328 HP @ 6100 RPM) has 199 more horse power than 2006 Audi A4. (129 HP @ 5700 RPM) In normal driving conditions, 2006 BMW 645 should accelerate faster than 2006 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 645 weights approximately 500 kg more than 2006 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 BMW 645 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 2006 BMW 645. However, in wet, icy, snow, or gravel driving conditions, 2006 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, 2006 BMW 645 (450 Nm @ 3600 RPM) has 254 more torque (in Nm) than 2006 Audi A4. (196 Nm @ 3300 RPM). This means 2006 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi A4. 2006 BMW 645 has automatic transmission and 2006 Audi A4 has manual transmission. 2006 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 BMW 645 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 Audi A4 | 2006 BMW 645 | |
| Make | Audi | BMW |
| Model | A4 | 645 |
| Year Released | 2006 | 2006 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1984 cc | 4398 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 129 HP | 328 HP |
| Engine RPM | 5700 RPM | 6100 RPM |
| Torque | 196 Nm | 450 Nm |
| Torque RPM | 3300 RPM | 3600 RPM |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 192 km/hour | 250 km/hour |
| Acceleration 0-100mph | 9.9 seconds | 5.6 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1310 kg | 1810 kg |
| Vehicle Length | 4590 mm | 4830 mm |
| Vehicle Width | 1780 mm | 1860 mm |
| Vehicle Height | 1430 mm | 1380 mm |
| Wheelbase Size | 2650 mm | 2790 mm |
| Fuel Consumption Overall | 8 L/100km | 13.3 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
