1997 Audi A4 vs. 2003 BMW 645
To start off, 2003 BMW 645 is newer by 6 year(s). Which means there will be less support and parts availability for 1997 Audi A4. In addition, the cost of maintenance, including insurance, on 1997 Audi A4 would be higher. At 4,398 cc (8 cylinders), 2003 BMW 645 is equipped with a bigger engine. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW 645 weights approximately 530 kg more than 1997 Audi A4.
Because 2003 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 2003 BMW 645. However, in wet, icy, snow, or gravel driving conditions, 1997 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.
Compare all specifications:
| 1997 Audi A4 | 2003 BMW 645 | |
| Make | Audi | BMW |
| Model | A4 | 645 |
| Year Released | 1997 | 2003 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2393 cc | 4398 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 0 HP | 321 HP |
| Engine Bore Size | 81.1 mm | 92 mm |
| Engine Stroke Size | 77.4 mm | 82.7 mm |
| Engine Compression Ratio | 10.5:1 | 10.5:1 |
| Acceleration 0-100mph | 9.9 seconds | 6.2 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1365 kg | 1895 kg |
| Vehicle Length | 4490 mm | 4830 mm |
| Vehicle Width | 1740 mm | 1860 mm |
| Vehicle Height | 1420 mm | 1380 mm |
| Wheelbase Size | 2630 mm | 2790 mm |
| Fuel Tank Capacity | 62 L | 70 L |
