2003 BMW M3 vs. 2008 BMW 318
To start off, 2008 BMW 318 is newer by 5 year(s). Which means there will be less support and parts availability for 2003 BMW M3. In addition, the cost of maintenance, including insurance, on 2003 BMW M3 would be higher. At 3,168 cc (6 cylinders), 2003 BMW M3 is equipped with a bigger engine. In terms of performance, 2003 BMW M3 (342 HP @ 7900 RPM) has 229 more horse power than 2008 BMW 318. (113 HP @ 4000 RPM). In normal driving conditions, 2003 BMW M3 should accelerate faster than 2008 BMW 318. With that said, vehicle weight also plays an important factor in acceleration. 2008 BMW 318 weights approximately 85 kg more than 2003 BMW M3.
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, 2003 BMW M3 (350 Nm @ 4900 RPM) has 70 more torque (in Nm) than 2008 BMW 318. (280 Nm @ 1750 RPM). This means 2003 BMW M3 will have an easier job in driving up hills or pulling heavy equipment than 2008 BMW 318.
Compare all specifications:
| 2003 BMW M3 | 2008 BMW 318 | |
| Make | BMW | BMW |
| Model | M3 | 318 |
| Year Released | 2003 | 2008 |
| Body Type | Coupe | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3168 cc | 1995 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 342 HP | 113 HP |
| Engine RPM | 7900 RPM | 4000 RPM |
| Torque | 350 Nm | 280 Nm |
| Torque RPM | 4900 RPM | 1750 RPM |
| Engine Bore Size | 87 mm | 84 mm |
| Engine Stroke Size | 91 mm | 90 mm |
| Engine Compression Ratio | 11.5:1 | 17.0:1 |
| Fuel Type | Gasoline | Diesel |
| Top Speed | 259 km/hour | 202 km/hour |
| Acceleration 0-100mph | 4.9 seconds | 10.5 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 3 doors |
| Vehicle Weight | 1385 kg | 1470 kg |
| Vehicle Length | 4500 mm | 4270 mm |
| Vehicle Width | 1790 mm | 1760 mm |
| Vehicle Height | 1370 mm | 1410 mm |
| Wheelbase Size | 2730 mm | 2730 mm |
| Fuel Consumption Overall | 11.4 L/100km | 5.8 L/100km |
| Fuel Tank Capacity | 63 L | 63 L |
