2004 BMW 320 vs. 2005 BMW 630
To start off, 2005 BMW 630 is newer by 1 year(s). Which means there will be less support and parts availability for 2004 BMW 320. In addition, the cost of maintenance, including insurance, on 2004 BMW 320 would be higher. At 2,999 cc (6 cylinders), 2005 BMW 630 is equipped with a bigger engine. In terms of performance, 2005 BMW 630 (254 HP @ 6600 RPM) has 106 more horse power than 2004 BMW 320. (148 HP @ 6000 RPM) In normal driving conditions, 2005 BMW 630 should accelerate faster than 2004 BMW 320. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 630 weights approximately 454 kg more than 2004 BMW 320. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 2005 BMW 630 (300 Nm @ 2500 RPM) has 90 more torque (in Nm) than 2004 BMW 320. (210 Nm @ 3750 RPM). This means 2005 BMW 630 will have an easier job in driving up hills or pulling heavy equipment than 2004 BMW 320. 2005 BMW 630 has automatic transmission and 2004 BMW 320 has manual transmission. 2004 BMW 320 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 BMW 630 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2004 BMW 320 | 2005 BMW 630 | |
| Make | BMW | BMW |
| Model | 320 | 630 |
| Year Released | 2004 | 2005 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1995 cc | 2999 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 148 HP | 254 HP |
| Engine RPM | 6000 RPM | 6600 RPM |
| Torque | 210 Nm | 300 Nm |
| Torque RPM | 3750 RPM | 2500 RPM |
| Engine Bore Size | 84 mm | 85 mm |
| Engine Stroke Size | 90 mm | 88 mm |
| Engine Compression Ratio | 10.0:1 | 10.7:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1310 kg | 1764 kg |
| Vehicle Length | 4480 mm | 4830 mm |
| Vehicle Width | 1770 mm | 1860 mm |
| Vehicle Height | 1420 mm | 1380 mm |
| Wheelbase Size | 2710 mm | 2670 mm |
| Fuel Tank Capacity | 67 L | 70 L |
