2009 Cadillac STS vs. 2012 BMW 318
To start off, 2012 BMW 318 is newer by 3 year(s). Which means there will be less support and parts availability for 2009 Cadillac STS. In addition, the cost of maintenance, including insurance, on 2009 Cadillac STS would be higher. At 4,565 cc (8 cylinders), 2009 Cadillac STS is equipped with a bigger engine. In terms of performance, 2009 Cadillac STS (321 HP @ 6400 RPM) has 178 more horse power than 2012 BMW 318. (143 HP @ 4000 RPM). In normal driving conditions, 2009 Cadillac STS should accelerate faster than 2012 BMW 318. With that said, vehicle weight also plays an important factor in acceleration. 2009 Cadillac STS weights approximately 325 kg more than 2012 BMW 318. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Cadillac STS is four wheel drive (4WD), it will have significant more traction and grip than 2012 BMW 318. In wet, icy, snow, or gravel driving conditions, 2009 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, 2009 Cadillac STS (427 Nm @ 4400 RPM) has 107 more torque (in Nm) than 2012 BMW 318. (320 Nm @ 1750 RPM). This means 2009 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2012 BMW 318. 2009 Cadillac STS has automatic transmission and 2012 BMW 318 has manual transmission. 2012 BMW 318 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Cadillac STS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Cadillac STS | 2012 BMW 318 | |
| Make | Cadillac | BMW |
| Model | STS | 318 |
| Year Released | 2009 | 2012 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4565 cc | 1995 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 321 HP | 143 HP |
| Engine RPM | 6400 RPM | 4000 RPM |
| Torque | 427 Nm | 320 Nm |
| Torque RPM | 4400 RPM | 1750 RPM |
| Engine Bore Size | 93 mm | 90 mm |
| Engine Stroke Size | 84 mm | 84 mm |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 250 km/hour | 209 km/hour |
| Acceleration 0-100mph | 6.2 seconds | 9.1 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | 6-speed manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1820 kg | 1495 kg |
| Vehicle Length | 4990 mm | 4624 mm |
| Vehicle Width | 1850 mm | 1811 mm |
| Vehicle Height | 1470 mm | 1429 mm |
| Wheelbase Size | 2960 mm | 2810 mm |
| Fuel Tank Capacity | 66 L | 57 L |
