2006 BMW 645 vs. 2012 Audi A3
To start off, 2012 Audi A3 is newer by 6 year(s). Which means there will be less support and parts availability for 2006 BMW 645. In addition, the cost of maintenance, including insurance, on 2006 BMW 645 would be higher. 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 128 more horse power than 2012 Audi A3. (200 HP @ 5100 RPM). In normal driving conditions, 2006 BMW 645 should accelerate faster than 2012 Audi A3. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 645 weights approximately 240 kg more than 2012 Audi A3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2012 Audi A3 is all wheel drive (AWD), it will have significant more traction and grip than 2006 BMW 645. In wet, icy, snow, or gravel driving conditions, 2012 Audi A3 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, 2006 BMW 645 (450 Nm @ 3600 RPM) has 170 more torque (in Nm) than 2012 Audi A3. (280 Nm @ 1800 RPM). This means 2006 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2012 Audi A3.
Compare all specifications:
| 2006 BMW 645 | 2012 Audi A3 | |
| Make | BMW | Audi |
| Model | 645 | A3 |
| Year Released | 2006 | 2012 |
| Body Type | Coupe | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 2000 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 328 HP | 200 HP |
| Engine RPM | 6100 RPM | 5100 RPM |
| Torque | 450 Nm | 280 Nm |
| Torque RPM | 3600 RPM | 1800 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | AWD |
| Transmission Type | Automatic | 6-speed automated manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1810 kg | 1570 kg |
| Vehicle Length | 4830 mm | 4290 mm |
| Vehicle Width | 1860 mm | 1763 mm |
| Vehicle Height | 1380 mm | 1422 mm |
| Wheelbase Size | 2790 mm | 2578 mm |
| Fuel Tank Capacity | 70 L | 60 L |
