1999 Alfa Romeo 146 vs. 2003 BMW 645
To start off, 2003 BMW 645 is newer by 4 year(s). Which means there will be less support and parts availability for 1999 Alfa Romeo 146. In addition, the cost of maintenance, including insurance, on 1999 Alfa Romeo 146 would be higher. At 4,398 cc (8 cylinders), 2003 BMW 645 is equipped with a bigger engine. In terms of performance, 2003 BMW 645 (325 HP @ 6100 RPM) has 223 more horse power than 1999 Alfa Romeo 146. (102 HP @ 6300 RPM) In normal driving conditions, 2003 BMW 645 should accelerate faster than 1999 Alfa Romeo 146. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW 645 weights approximately 530 kg more than 1999 Alfa Romeo 146. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 1999 Alfa Romeo 146, 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, 2003 BMW 645 (450 Nm @ 3600 RPM) has 325 more torque (in Nm) than 1999 Alfa Romeo 146. (125 Nm @ 4600 RPM). This means 2003 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 1999 Alfa Romeo 146.
Compare all specifications:
| 1999 Alfa Romeo 146 | 2003 BMW 645 | |
| Make | Alfa Romeo | BMW |
| Model | 146 | 645 |
| Year Released | 1999 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 1370 cc | 4398 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 102 HP | 325 HP |
| Engine RPM | 6300 RPM | 6100 RPM |
| Torque | 125 Nm | 450 Nm |
| Torque RPM | 4600 RPM | 3600 RPM |
| Engine Bore Size | 82.1 mm | 92 mm |
| Engine Stroke Size | 64.9 mm | 82.7 mm |
| Engine Compression Ratio | 10.5:1 | 10.5:1 |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 3 doors | 2 doors |
| Vehicle Weight | 1160 kg | 1690 kg |
| Vehicle Length | 4270 mm | 4830 mm |
| Vehicle Width | 1720 mm | 1860 mm |
| Vehicle Height | 1430 mm | 1380 mm |
| Wheelbase Size | 2550 mm | 2890 mm |
| Fuel Tank Capacity | 51 L | 70 L |
