2005 Audi S4 vs. 1989 Buick Riviera
To start off, 2005 Audi S4 is newer by 16 year(s). Which means there will be less support and parts availability for 1989 Buick Riviera. In addition, the cost of maintenance, including insurance, on 1989 Buick Riviera would be higher. At 4,163 cc (8 cylinders), 2005 Audi S4 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (340 HP @ 6300 RPM) has 175 more horse power than 1989 Buick Riviera. (165 HP @ 4800 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 1989 Buick Riviera. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 211 kg more than 1989 Buick Riviera. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2005 Audi S4 (410 Nm) has 125 more torque (in Nm) than 1989 Buick Riviera. (285 Nm). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1989 Buick Riviera.
Compare all specifications:
| 2005 Audi S4 | 1989 Buick Riviera | |
| Make | Audi | Buick |
| Model | S4 | Riviera |
| Year Released | 2005 | 1989 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 3800 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Horse Power | 340 HP | 165 HP |
| Engine RPM | 6300 RPM | 4800 RPM |
| Torque | 410 Nm | 285 Nm |
| Engine Bore Size | 85.1 mm | 96.5 mm |
| Engine Stroke Size | 93 mm | 86.4 mm |
| Engine Compression Ratio | 11.0:1 | 8.5:1 |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1735 kg | 1524 kg |
| Vehicle Length | 4550 mm | 5040 mm |
| Vehicle Width | 1770 mm | 1830 mm |
| Wheelbase Size | 2660 mm | 2760 mm |
