2012 BMW 640 vs. 2012 BMW M3
To start off, both 2012 BMW 640 and 2012 BMW M3 were released in the same year (2012). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 3,999 cc (8 cylinders), 2012 BMW M3 is equipped with a bigger engine. In terms of performance, 2012 BMW M3 (414 HP @ 8300 RPM) has 103 more horse power than 2012 BMW 640. (311 HP @ 4400 RPM) In normal driving conditions, 2012 BMW M3 should accelerate faster than 2012 BMW 640. With that said, vehicle weight also plays an important factor in acceleration. 2012 BMW M3 weights approximately 95 kg more than 2012 BMW 640. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front 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, 2012 BMW 640 (630 Nm @ 1500 RPM) has 230 more torque (in Nm) than 2012 BMW M3. (400 Nm @ 3900 RPM). This means 2012 BMW 640 will have an easier job in driving up hills or pulling heavy equipment than 2012 BMW M3. 2012 BMW 640 has automatic transmission and 2012 BMW M3 has manual transmission. 2012 BMW M3 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:
| 2012 BMW 640 | 2012 BMW M3 | |
| Make | BMW | BMW |
| Model | 640 | M3 |
| Year Released | 2012 | 2012 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 3999 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 311 HP | 414 HP |
| Engine RPM | 4400 RPM | 8300 RPM |
| Torque | 630 Nm | 400 Nm |
| Torque RPM | 1500 RPM | 3900 RPM |
| Engine Bore Size | 90 mm | 75.2 mm |
| Engine Stroke Size | 84 mm | 92 mm |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 5.5 seconds | 5.3 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | 8-speed shiftable automatic | 6-speed manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1790 kg | 1885 kg |
| Vehicle Length | 4894 mm | 4615 mm |
| Vehicle Width | 1894 mm | 1803 mm |
| Vehicle Height | 1369 mm | 1392 mm |
| Wheelbase Size | 2855 mm | 2761 mm |
| Fuel Consumption | 4.8 L/100km | 12.7 L/100km |
| Fuel Consumption City | 6.7 L/100km | 18 L/100km |
| Fuel Consumption Overall | 5.5 L/100km | 9.6 L/100km |
| Fuel Tank Capacity | 70 L | 63 L |
