1998 BMW M vs. 2004 BMW 630
To start off, 2004 BMW 630 is newer by 6 year(s). Which means there will be less support and parts availability for 1998 BMW M. In addition, the cost of maintenance, including insurance, on 1998 BMW M would be higher. At 3,246 cc (6 cylinders), 1998 BMW M is equipped with a bigger engine. In terms of performance, 1998 BMW M (328 HP @ 7400 RPM) has 74 more horse power than 2004 BMW 630. (254 HP @ 6600 RPM). In normal driving conditions, 1998 BMW M should accelerate faster than 2004 BMW 630. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW 630 weights approximately 310 kg more than 1998 BMW M.
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, 1998 BMW M (340 Nm @ 3250 RPM) has 35 more torque (in Nm) than 2004 BMW 630. (305 Nm @ 2500 RPM). This means 1998 BMW M will have an easier job in driving up hills or pulling heavy equipment than 2004 BMW 630.
Compare all specifications:
| 1998 BMW M | 2004 BMW 630 | |
| Make | BMW | BMW |
| Model | M | 630 |
| Year Released | 1998 | 2004 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3246 cc | 2993 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 328 HP | 254 HP |
| Engine RPM | 7400 RPM | 6600 RPM |
| Torque | 340 Nm | 305 Nm |
| Torque RPM | 3250 RPM | 2500 RPM |
| Engine Bore Size | 86.5 mm | 85.1 mm |
| Engine Stroke Size | 91 mm | 88 mm |
| Engine Compression Ratio | 11.3:1 | 10.7:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Acceleration 0-100mph | 5.4 seconds | 6.9 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1450 kg | 1760 kg |
| Vehicle Length | 4030 mm | 4830 mm |
| Vehicle Width | 1700 mm | 1860 mm |
| Vehicle Height | 1310 mm | 1380 mm |
| Wheelbase Size | 2450 mm | 2790 mm |
| Fuel Tank Capacity | 51 L | 70 L |
