2009 Cadillac STS vs. 2007 Mercedes-Benz A
To start off, 2009 Cadillac STS is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Mercedes-Benz A. In addition, the cost of maintenance, including insurance, on 2007 Mercedes-Benz A would be higher. At 3,599 cc (6 cylinders), 2009 Cadillac STS is equipped with a bigger engine. In terms of performance, 2009 Cadillac STS (302 HP @ 6300 RPM) has 194 more horse power than 2007 Mercedes-Benz A. (108 HP @ 4200 RPM). In normal driving conditions, 2009 Cadillac STS should accelerate faster than 2007 Mercedes-Benz A. With that said, vehicle weight also plays an important factor in acceleration. 2009 Cadillac STS weights approximately 290 kg more than 2007 Mercedes-Benz A. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Cadillac STS is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2009 Cadillac STS. However, in wet, icy, snow, or gravel driving conditions, 2007 Mercedes-Benz A, being front wheel drive (FWD), will offer much better control with better grip. 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 (369 Nm @ 5200 RPM) has 119 more torque (in Nm) than 2007 Mercedes-Benz A. (250 Nm @ 1600 RPM). This means 2009 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2007 Mercedes-Benz A.
Compare all specifications:
| 2009 Cadillac STS | 2007 Mercedes-Benz A | |
| Make | Cadillac | Mercedes-Benz |
| Model | STS | A |
| Year Released | 2009 | 2007 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3599 cc | 1991 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 302 HP | 108 HP |
| Engine RPM | 6300 RPM | 4200 RPM |
| Torque | 369 Nm | 250 Nm |
| Torque RPM | 5200 RPM | 1600 RPM |
| Engine Compression Ratio | 11.3:1 | 18.0:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1635 kg | 1345 kg |
| Vehicle Length | 5000 mm | 3840 mm |
| Vehicle Width | 1850 mm | 1770 mm |
| Vehicle Height | 1470 mm | 1600 mm |
| Wheelbase Size | 2960 mm | 2570 mm |
| Fuel Consumption Overall | 11.8 L/100km | 5.2 L/100km |
| Fuel Tank Capacity | 64 L | 60 L |
