2004 Audi A4 vs. 2012 BMW 640
To start off, 2012 BMW 640 is newer by 8 year(s). Which means there will be less support and parts availability for 2004 Audi A4. In addition, the cost of maintenance, including insurance, on 2004 Audi A4 would be higher. At 2,993 cc (6 cylinders), 2012 BMW 640 is equipped with a bigger engine. In terms of performance, 2012 BMW 640 (311 HP @ 4400 RPM) has 110 more horse power than 2004 Audi A4. (201 HP @ 3500 RPM) In normal driving conditions, 2012 BMW 640 should accelerate faster than 2004 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2012 BMW 640 weights approximately 264 kg more than 2004 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2012 BMW 640. In wet, icy, snow, or gravel driving conditions, 2004 Audi A4 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, 2012 BMW 640 (630 Nm @ 1500 RPM) has 180 more torque (in Nm) than 2004 Audi A4. (450 Nm @ 1400 RPM). This means 2012 BMW 640 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A4. 2012 BMW 640 has automatic transmission and 2004 Audi A4 has manual transmission. 2004 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2012 BMW 640 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2004 Audi A4 | 2012 BMW 640 | |
| Make | Audi | BMW |
| Model | A4 | 640 |
| Year Released | 2004 | 2012 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2983 cc | 2993 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 201 HP | 311 HP |
| Engine RPM | 3500 RPM | 4400 RPM |
| Torque | 450 Nm | 630 Nm |
| Torque RPM | 1400 RPM | 1500 RPM |
| Engine Bore Size | 83 mm | 90 mm |
| Engine Stroke Size | 91.4 mm | 84 mm |
| Fuel Type | Diesel | Diesel |
| Top Speed | 231 km/hour | 250 km/hour |
| Acceleration 0-100mph | 7.4 seconds | 5.6 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | 8-speed shiftable automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1671 kg | 1935 kg |
| Vehicle Length | 4590 mm | 4894 mm |
| Vehicle Width | 1780 mm | 1894 mm |
| Vehicle Height | 1430 mm | 1365 mm |
| Wheelbase Size | 2660 mm | 2855 mm |
| Fuel Consumption Highway | 6 L/100km | 4.8 L/100km |
| Fuel Consumption City | 10.5 L/100km | 6.7 L/100km |
| Fuel Consumption Overall | 7.7 L/100km | 5.5 L/100km |
| Fuel Tank Capacity | 63 L | 70 L |
