1991 Audi V8 vs. 2008 Cadillac STS
To start off, 2008 Cadillac STS is newer by 17 year(s). Which means there will be less support and parts availability for 1991 Audi V8. In addition, the cost of maintenance, including insurance, on 1991 Audi V8 would be higher. At 4,565 cc (8 cylinders), 2008 Cadillac STS is equipped with a bigger engine. In terms of performance, 2008 Cadillac STS (320 HP @ 6400 RPM) has 73 more horse power than 1991 Audi V8. (247 HP @ 5800 RPM) In normal driving conditions, 2008 Cadillac STS should accelerate faster than 1991 Audi V8. With that said, vehicle weight also plays an important factor in acceleration. 1991 Audi V8 weights approximately 155 kg more than 2008 Cadillac STS.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear 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, 2008 Cadillac STS (427 Nm @ 4400 RPM) has 87 more torque (in Nm) than 1991 Audi V8. (340 Nm @ 4000 RPM). This means 2008 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 1991 Audi V8. 2008 Cadillac STS has automatic transmission and 1991 Audi V8 has manual transmission. 1991 Audi V8 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 Cadillac STS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1991 Audi V8 | 2008 Cadillac STS | |
| Make | Audi | Cadillac |
| Model | V8 | STS |
| Year Released | 1991 | 2008 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3562 cc | 4565 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 247 HP | 320 HP |
| Engine RPM | 5800 RPM | 6400 RPM |
| Torque | 340 Nm | 427 Nm |
| Torque RPM | 4000 RPM | 4400 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1790 kg | 1635 kg |
| Vehicle Length | 4870 mm | 5000 mm |
| Vehicle Width | 1820 mm | 1850 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2710 mm | 2960 mm |
| Fuel Tank Capacity | 80 L | 64 L |
