2005 Cadillac STS vs. 2013 BMW M6
To start off, 2013 BMW M6 is newer by 8 year(s). Which means there will be less support and parts availability for 2005 Cadillac STS. In addition, the cost of maintenance, including insurance, on 2005 Cadillac STS would be higher. At 4,395 cc (8 cylinders), 2013 BMW M6 is equipped with a bigger engine. In terms of performance, 2013 BMW M6 (552 HP @ 7000 RPM) has 297 more horse power than 2005 Cadillac STS. (255 HP @ 6500 RPM) In normal driving conditions, 2013 BMW M6 should accelerate faster than 2005 Cadillac STS. With that said, vehicle weight also plays an important factor in acceleration. 2013 BMW M6 weights approximately 134 kg more than 2005 Cadillac STS. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2013 BMW M6 (678 Nm @ 5750 RPM) has 339 more torque (in Nm) than 2005 Cadillac STS. (339 Nm @ 3200 RPM). This means 2013 BMW M6 will have an easier job in driving up hills or pulling heavy equipment than 2005 Cadillac STS.
Compare all specifications:
| 2005 Cadillac STS | 2013 BMW M6 | |
| Make | Cadillac | BMW |
| Model | STS | M6 |
| Year Released | 2005 | 2013 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3556 cc | 4395 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 255 HP | 552 HP |
| Engine RPM | 6500 RPM | 7000 RPM |
| Torque | 339 Nm | 678 Nm |
| Torque RPM | 3200 RPM | 5750 RPM |
| Engine Bore Size | 94 mm | 89 mm |
| Engine Stroke Size | 86 mm | 88 mm |
| Engine Compression Ratio | 10.2:1 | 10.0 :1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | 7-speed automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1796 kg | 1930 kg |
| Vehicle Length | 4990 mm | 4903 mm |
| Vehicle Width | 1850 mm | 2106 mm |
| Vehicle Height | 1470 mm | 1374 mm |
| Wheelbase Size | 2890 mm | 2851 mm |
| Fuel Consumption Highway | 9.8 L/100km | 8.6 L/100km |
| Fuel Consumption City | 13.8 L/100km | 13.2 L/100km |
| Fuel Tank Capacity | 64 L | 80 L |
