1999 Audi S8 vs. 1978 Cadillac Seville
To start off, 1999 Audi S8 is newer by 21 year(s). Which means there will be less support and parts availability for 1978 Cadillac Seville. In addition, the cost of maintenance, including insurance, on 1978 Cadillac Seville would be higher. At 5,735 cc (8 cylinders), 1978 Cadillac Seville is equipped with a bigger engine. In terms of performance, 1999 Audi S8 (247 HP @ 7000 RPM) has 79 more horse power than 1978 Cadillac Seville. (168 HP @ 4200 RPM). In normal driving conditions, 1999 Audi S8 should accelerate faster than 1978 Cadillac Seville. With that said, vehicle weight also plays an important factor in acceleration. 1978 Cadillac Seville weights approximately 140 kg more than 1999 Audi S8.
Because 1999 Audi S8 is all wheel drive (AWD), it will have significant more traction and grip than 1978 Cadillac Seville. In wet, icy, snow, or gravel driving conditions, 1999 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, 1978 Cadillac Seville (365 Nm @ 2000 RPM) has 35 more torque (in Nm) than 1999 Audi S8. (330 Nm @ 3400 RPM). This means 1978 Cadillac Seville will have an easier job in driving up hills or pulling heavy equipment than 1999 Audi S8.
Compare all specifications:
| 1999 Audi S8 | 1978 Cadillac Seville | |
| Make | Audi | Cadillac |
| Model | S8 | Seville |
| Year Released | 1999 | 1978 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4170 cc | 5735 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Horse Power | 247 HP | 168 HP |
| Engine RPM | 7000 RPM | 4200 RPM |
| Torque | 330 Nm | 365 Nm |
| Torque RPM | 3400 RPM | 2000 RPM |
| Engine Bore Size | 84.5 mm | 103 mm |
| Engine Stroke Size | 93 mm | 86 mm |
| Drive Type | AWD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1750 kg | 1890 kg |
| Vehicle Length | 5040 mm | 5190 mm |
| Vehicle Width | 1890 mm | 1830 mm |
| Vehicle Height | 1420 mm | 1400 mm |
| Wheelbase Size | 2890 mm | 2910 mm |
