2009 Alfa Romeo GT vs. 2004 BMW 645
To start off, 2009 Alfa Romeo GT is newer by 5 year(s). Which means there will be less support and parts availability for 2004 BMW 645. In addition, the cost of maintenance, including insurance, on 2004 BMW 645 would be higher. At 4,398 cc (8 cylinders), 2004 BMW 645 is equipped with a bigger engine. In terms of performance, 2004 BMW 645 (328 HP @ 6100 RPM) has 91 more horse power than 2009 Alfa Romeo GT. (237 HP @ 6200 RPM) In normal driving conditions, 2004 BMW 645 should accelerate faster than 2009 Alfa Romeo GT. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW 645 weights approximately 330 kg more than 2009 Alfa Romeo GT. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 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 2004 BMW 645. However, in wet, icy, snow, or gravel driving conditions, 2009 Alfa Romeo GT, 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, 2004 BMW 645 (451 Nm @ 3600 RPM) has 151 more torque (in Nm) than 2009 Alfa Romeo GT. (300 Nm @ 4800 RPM). This means 2004 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2009 Alfa Romeo GT.
Compare all specifications:
| 2009 Alfa Romeo GT | 2004 BMW 645 | |
| Make | Alfa Romeo | BMW |
| Model | GT | 645 |
| Year Released | 2009 | 2004 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3179 cc | 4398 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 237 HP | 328 HP |
| Engine RPM | 6200 RPM | 6100 RPM |
| Torque | 300 Nm | 451 Nm |
| Torque RPM | 4800 RPM | 3600 RPM |
| Engine Bore Size | 93.1 mm | 92 mm |
| Engine Stroke Size | 78 mm | 82.7 mm |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Acceleration 0-100mph | 6.7 seconds | 6.1 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1485 kg | 1815 kg |
| Vehicle Length | 4500 mm | 4830 mm |
| Vehicle Width | 1770 mm | 1860 mm |
| Vehicle Height | 1370 mm | 1380 mm |
| Wheelbase Size | 2600 mm | 2790 mm |
| Fuel Consumption Overall | 12.4 L/100km | 12.8 L/100km |
| Fuel Tank Capacity | 63 L | 70 L |
