1991 Audi S2 vs. 1999 Buick Riviera
To start off, 1999 Buick Riviera is newer by 8 year(s). Which means there will be less support and parts availability for 1991 Audi S2. In addition, the cost of maintenance, including insurance, on 1991 Audi S2 would be higher. At 3,791 cc (6 cylinders), 1999 Buick Riviera is equipped with a bigger engine. In terms of performance, 1991 Audi S2 (216 HP @ 5900 RPM) has 11 more horse power than 1999 Buick Riviera. (205 HP @ 5200 RPM). In normal driving conditions, 1991 Audi S2 should accelerate faster than 1999 Buick Riviera. With that said, vehicle weight also plays an important factor in acceleration. 1999 Buick Riviera weights approximately 280 kg more than 1991 Audi S2.
Because 1991 Audi S2 is four wheel drive (4WD), it will have significant more traction and grip than 1999 Buick Riviera. In wet, icy, snow, or gravel driving conditions, 1991 Audi S2 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, 1999 Buick Riviera (312 Nm @ 4000 RPM) has 3 more torque (in Nm) than 1991 Audi S2. (309 Nm @ 1950 RPM). This means 1999 Buick Riviera will have an easier job in driving up hills or pulling heavy equipment than 1991 Audi S2. 1999 Buick Riviera has automatic transmission and 1991 Audi S2 has manual transmission. 1991 Audi S2 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1999 Buick Riviera will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1991 Audi S2 | 1999 Buick Riviera | |
| Make | Audi | Buick |
| Model | S2 | Riviera |
| Year Released | 1991 | 1999 |
| Engine Position | Front | Front |
| Engine Size | 2226 cc | 3791 cc |
| Engine Cylinders | 5 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 216 HP | 205 HP |
| Engine RPM | 5900 RPM | 5200 RPM |
| Torque | 309 Nm | 312 Nm |
| Torque RPM | 1950 RPM | 4000 RPM |
| Engine Bore Size | 81.1 mm | 96.5 mm |
| Engine Stroke Size | 86.4 mm | 86.4 mm |
| Engine Compression Ratio | 9.3:1 | 9.4:1 |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1420 kg | 1700 kg |
| Vehicle Length | 4410 mm | 5270 mm |
| Vehicle Width | 1720 mm | 1910 mm |
| Vehicle Height | 1380 mm | 1400 mm |
