1991 Buick Riviera vs. 2006 Lexus RX
To start off, 2006 Lexus RX is newer by 15 year(s). Which means there will be less support and parts availability for 1991 Buick Riviera. In addition, the cost of maintenance, including insurance, on 1991 Buick Riviera would be higher. At 3,800 cc (6 cylinders), 1991 Buick Riviera is equipped with a bigger engine. In terms of performance, 2006 Lexus RX (201 HP @ 5600 RPM) has 31 more horse power than 1991 Buick Riviera. (170 HP @ 4800 RPM) In normal driving conditions, 2006 Lexus RX should accelerate faster than 1991 Buick Riviera. With that said, vehicle weight also plays an important factor in acceleration. 2006 Lexus RX weights approximately 20 kg more than 1991 Buick Riviera. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 Lexus RX is four wheel drive (4WD), it will have significant more traction and grip than 1991 Buick Riviera. In wet, icy, snow, or gravel driving conditions, 2006 Lexus RX 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, 1991 Buick Riviera (285 Nm @ 3200 RPM) has 2 more torque (in Nm) than 2006 Lexus RX. (283 Nm @ 4500 RPM). This means 1991 Buick Riviera will have an easier job in driving up hills or pulling heavy equipment than 2006 Lexus RX.
Compare all specifications:
| 1991 Buick Riviera | 2006 Lexus RX | |
| Make | Buick | Lexus |
| Model | Riviera | RX |
| Year Released | 1991 | 2006 |
| Body Type | Coupe | SUV |
| Engine Position | Front | Front |
| Engine Size | 3800 cc | 2995 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Horse Power | 170 HP | 201 HP |
| Engine RPM | 4800 RPM | 5600 RPM |
| Torque | 285 Nm | 283 Nm |
| Torque RPM | 3200 RPM | 4500 RPM |
| Engine Compression Ratio | 8.5:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1520 kg | 1540 kg |
| Vehicle Length | 5040 mm | 4750 mm |
| Vehicle Width | 1830 mm | 1850 mm |
| Vehicle Height | 1350 mm | 1680 mm |
| Wheelbase Size | 2760 mm | 2720 mm |
