1999 Buick Riviera vs. 1979 Fiat 131
To start off, 1999 Buick Riviera is newer by 20 year(s). Which means there will be less support and parts availability for 1979 Fiat 131. In addition, the cost of maintenance, including insurance, on 1979 Fiat 131 would be higher. At 3,791 cc (6 cylinders), 1999 Buick Riviera is equipped with a bigger engine. In terms of performance, 1999 Buick Riviera (205 HP @ 5200 RPM) has 134 more horse power than 1979 Fiat 131. (71 HP @ 4200 RPM). In normal driving conditions, 1999 Buick Riviera should accelerate faster than 1979 Fiat 131. With that said, vehicle weight also plays an important factor in acceleration. 1999 Buick Riviera weights approximately 490 kg more than 1979 Fiat 131. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1979 Fiat 131 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1979 Fiat 131. However, in wet, icy, snow, or gravel driving conditions, 1999 Buick Riviera, being front wheel drive (FWD), will offer much better control with better grip. 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 160 more torque (in Nm) than 1979 Fiat 131. (152 Nm @ 2400 RPM). This means 1999 Buick Riviera will have an easier job in driving up hills or pulling heavy equipment than 1979 Fiat 131.
Compare all specifications:
| 1999 Buick Riviera | 1979 Fiat 131 | |
| Make | Buick | Fiat |
| Model | Riviera | 131 |
| Year Released | 1999 | 1979 |
| Engine Position | Front | Front |
| Engine Size | 3791 cc | 2443 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 205 HP | 71 HP |
| Engine RPM | 5200 RPM | 4200 RPM |
| Torque | 312 Nm | 152 Nm |
| Torque RPM | 4000 RPM | 2400 RPM |
| Engine Bore Size | 96.5 mm | 93 mm |
| Engine Stroke Size | 86.4 mm | 90 mm |
| Engine Compression Ratio | 9.4:1 | 22.0:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 2 seats |
| Vehicle Weight | 1700 kg | 1210 kg |
| Vehicle Length | 5270 mm | 4270 mm |
| Vehicle Width | 1910 mm | 1660 mm |
| Vehicle Height | 1400 mm | 1370 mm |
