2003 BMW M3 vs. 2008 Cadillac STS
To start off, 2008 Cadillac STS 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 4,376 cc (8 cylinders), 2008 Cadillac STS is equipped with a bigger engine. In terms of performance, 2008 Cadillac STS (469 HP @ 6400 RPM) has 127 more horse power than 2003 BMW M3. (342 HP @ 7900 RPM) In normal driving conditions, 2008 Cadillac STS should accelerate faster than 2003 BMW M3. With that said, vehicle weight also plays an important factor in acceleration. 2008 Cadillac STS weights approximately 175 kg more than 2003 BMW M3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Cadillac STS is four wheel drive (4WD), it will have significant more traction and grip than 2003 BMW M3. In wet, icy, snow, or gravel driving conditions, 2008 Cadillac STS will offer significantly more control. 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, 2008 Cadillac STS (595 Nm @ 3900 RPM) has 245 more torque (in Nm) than 2003 BMW M3. (350 Nm @ 4900 RPM). This means 2008 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW M3. 2008 Cadillac STS has automatic transmission and 2003 BMW M3 has manual transmission. 2003 BMW M3 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 Cadillac STS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 BMW M3 | 2008 Cadillac STS | |
| Make | BMW | Cadillac |
| Model | M3 | STS |
| Year Released | 2003 | 2008 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3168 cc | 4376 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 342 HP | 469 HP |
| Engine RPM | 7900 RPM | 6400 RPM |
| Torque | 350 Nm | 595 Nm |
| Torque RPM | 4900 RPM | 3900 RPM |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1385 kg | 1560 kg |
| Vehicle Length | 4500 mm | 5030 mm |
| Vehicle Width | 1790 mm | 1850 mm |
| Vehicle Height | 1370 mm | 1480 mm |
| Wheelbase Size | 2730 mm | 2960 mm |
| Fuel Consumption | 8.4 L/100km | 12.4 L/100km |
| Fuel Consumption City | 17.8 L/100km | 18.1 L/100km |
| Fuel Consumption Overall | 11.4 L/100km | 15.7 L/100km |
| Fuel Tank Capacity | 63 L | 64 L |
