2009 Cadillac SRX vs. 2007 Mercedes-Benz S
To start off, 2009 Cadillac SRX is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Mercedes-Benz S. In addition, the cost of maintenance, including insurance, on 2007 Mercedes-Benz S would be higher. At 4,565 cc (8 cylinders), 2009 Cadillac SRX is equipped with a bigger engine. In terms of performance, 2009 Cadillac SRX (321 HP @ 6400 RPM) has 53 more horse power than 2007 Mercedes-Benz S. (268 HP @ 6000 RPM). In normal driving conditions, 2009 Cadillac SRX should accelerate faster than 2007 Mercedes-Benz S. With that said, vehicle weight also plays an important factor in acceleration. 2009 Cadillac SRX weights approximately 246 kg more than 2007 Mercedes-Benz S. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Cadillac SRX is four wheel drive (4WD), it will have significant more traction and grip than 2007 Mercedes-Benz S. In wet, icy, snow, or gravel driving conditions, 2009 Cadillac SRX 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 SRX (427 Nm @ 4400 RPM) has 77 more torque (in Nm) than 2007 Mercedes-Benz S. (350 Nm @ 2400 RPM). This means 2009 Cadillac SRX will have an easier job in driving up hills or pulling heavy equipment than 2007 Mercedes-Benz S.
Compare all specifications:
| 2009 Cadillac SRX | 2007 Mercedes-Benz S | |
| Make | Cadillac | Mercedes-Benz |
| Model | SRX | S |
| Year Released | 2009 | 2007 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4565 cc | 3496 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 321 HP | 268 HP |
| Engine RPM | 6400 RPM | 6000 RPM |
| Torque | 427 Nm | 350 Nm |
| Torque RPM | 4400 RPM | 2400 RPM |
| Engine Bore Size | 93 mm | 92.9 mm |
| Engine Stroke Size | 84 mm | 86 mm |
| Engine Compression Ratio | 10.5:1 | 10.7:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 225 km/hour | 250 km/hour |
| Acceleration 0-100mph | 7.4 seconds | 7.3 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 2126 kg | 1880 kg |
| Vehicle Length | 4960 mm | 5080 mm |
| Vehicle Width | 1850 mm | 1480 mm |
| Vehicle Height | 1730 mm | 1880 mm |
| Wheelbase Size | 2960 mm | 3040 mm |
| Fuel Consumption Overall | 14.1 L/100km | 10.3 L/100km |
| Fuel Tank Capacity | 76 L | 90 L |
