1999 Buick Riviera vs. 1991 Mercedes-Benz G
To start off, 1999 Buick Riviera is newer by 8 year(s). Which means there will be less support and parts availability for 1991 Mercedes-Benz G. In addition, the cost of maintenance, including insurance, on 1991 Mercedes-Benz G 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 80 more horse power than 1991 Mercedes-Benz G. (125 HP @ 5000 RPM). In normal driving conditions, 1999 Buick Riviera should accelerate faster than 1991 Mercedes-Benz G. With that said, vehicle weight also plays an important factor in acceleration. 1991 Mercedes-Benz G weights approximately 180 kg more than 1999 Buick Riviera.
Because 1991 Mercedes-Benz G 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 Mercedes-Benz G 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 120 more torque (in Nm) than 1991 Mercedes-Benz G. (192 Nm @ 4000 RPM). This means 1999 Buick Riviera will have an easier job in driving up hills or pulling heavy equipment than 1991 Mercedes-Benz G. 1999 Buick Riviera has automatic transmission and 1991 Mercedes-Benz G has manual transmission. 1991 Mercedes-Benz G 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:
| 1999 Buick Riviera | 1991 Mercedes-Benz G | |
| Make | Buick | Mercedes-Benz |
| Model | Riviera | G |
| Year Released | 1999 | 1991 |
| Body Type | Coupe | SUV |
| Engine Position | Front | Front |
| Engine Size | 3791 cc | 2299 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 205 HP | 125 HP |
| Engine RPM | 5200 RPM | 5000 RPM |
| Torque | 312 Nm | 192 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Engine Bore Size | 96.5 mm | 95.5 mm |
| Engine Stroke Size | 86.4 mm | 80.2 mm |
| Engine Compression Ratio | 9.4:1 | 9.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 4 seats | 5 seats |
| Vehicle Weight | 1700 kg | 1880 kg |
| Vehicle Length | 5270 mm | 4240 mm |
| Vehicle Width | 1910 mm | 1770 mm |
| Vehicle Height | 1400 mm | 1940 mm |
