2008 Audi S8 vs. 2009 Cadillac CTS-V
To start off, 2009 Cadillac CTS-V is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Audi S8. In addition, the cost of maintenance, including insurance, on 2008 Audi S8 would be higher. At 6,162 cc (8 cylinders), 2009 Cadillac CTS-V is equipped with a bigger engine. In terms of performance, 2009 Cadillac CTS-V (542 HP @ 6200 RPM) has 98 more horse power than 2008 Audi S8. (444 HP @ 7000 RPM) In normal driving conditions, 2009 Cadillac CTS-V should accelerate faster than 2008 Audi S8.
Because 2008 Audi S8 is all wheel drive (AWD), it will have significant more traction and grip than 2009 Cadillac CTS-V. In wet, icy, snow, or gravel driving conditions, 2008 Audi S8 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 CTS-V (550 Nm @ 6200 RPM) has 10 more torque (in Nm) than 2008 Audi S8. (540 Nm @ 3500 RPM). This means 2009 Cadillac CTS-V will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi S8. 2008 Audi S8 has automatic transmission and 2009 Cadillac CTS-V has manual transmission. 2009 Cadillac CTS-V will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 Audi S8 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2008 Audi S8 | 2009 Cadillac CTS-V | |
| Make | Audi | Cadillac |
| Model | S8 | CTS-V |
| Year Released | 2008 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5204 cc | 6162 cc |
| Engine Cylinders | 10 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 444 HP | 542 HP |
| Engine RPM | 7000 RPM | 6200 RPM |
| Torque | 540 Nm | 550 Nm |
| Torque RPM | 3500 RPM | 6200 RPM |
| Engine Compression Ratio | 12.5:1 | 9.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | AWD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Width | 1900 mm | 1850 mm |
| Wheelbase Size | 2950 mm | 2890 mm |
| Fuel Tank Capacity | 90 L | 68 L |
