2003 BMW 645 vs. 2009 Nissan Altima
To start off, 2009 Nissan Altima is newer by 6 year(s). Which means there will be less support and parts availability for 2003 BMW 645. In addition, the cost of maintenance, including insurance, on 2003 BMW 645 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 (321 HP @ 6100 RPM) has 51 more horse power than 2009 Nissan Altima. (270 HP @ 6000 RPM). In normal driving conditions, 2003 BMW 645 should accelerate faster than 2009 Nissan Altima. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW 645 weights approximately 449 kg more than 2009 Nissan Altima. 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, 2009 Nissan Altima, 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 100 more torque (in Nm) than 2009 Nissan Altima. (350 Nm @ 4400 RPM). This means 2003 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2009 Nissan Altima. 2003 BMW 645 has automatic transmission and 2009 Nissan Altima has manual transmission. 2009 Nissan Altima will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 BMW 645 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 BMW 645 | 2009 Nissan Altima | |
| Make | BMW | Nissan |
| Model | 645 | Altima |
| Year Released | 2003 | 2009 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 3490 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 321 HP | 270 HP |
| Engine RPM | 6100 RPM | 6000 RPM |
| Torque | 450 Nm | 350 Nm |
| Torque RPM | 3600 RPM | 4400 RPM |
| Engine Bore Size | 92 mm | 95.5 mm |
| Engine Stroke Size | 82.7 mm | 81.4 mm |
| Engine Compression Ratio | 10.5:1 | 9.8:1 |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1895 kg | 1446 kg |
| Vehicle Length | 4830 mm | 4640 mm |
| Vehicle Width | 1860 mm | 1800 mm |
| Vehicle Height | 1380 mm | 1410 mm |
| Wheelbase Size | 2790 mm | 2680 mm |
| Fuel Consumption | 8.5 L/100km | 8.7 L/100km |
| Fuel Consumption City | 16.8 L/100km | 12.4 L/100km |
| Fuel Consumption Overall | 11.5 L/100km | 10.7 L/100km |
| Fuel Tank Capacity | 70 L | 76 L |
