1991 Buick Riviera vs. 2011 Land Rover LR4
To start off, 2011 Land Rover LR4 is newer by 20 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 5,000 cc (8 cylinders), 2011 Land Rover LR4 is equipped with a bigger engine. In terms of performance, 2011 Land Rover LR4 (375 HP @ 6500 RPM) has 205 more horse power than 1991 Buick Riviera. (170 HP @ 4800 RPM) In normal driving conditions, 2011 Land Rover LR4 should accelerate faster than 1991 Buick Riviera. With that said, vehicle weight also plays an important factor in acceleration. 2011 Land Rover LR4 weights approximately 1028 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 2011 Land Rover LR4 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, 2011 Land Rover LR4 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, 2011 Land Rover LR4 (508 Nm @ 3500 RPM) has 223 more torque (in Nm) than 1991 Buick Riviera. (285 Nm @ 3200 RPM). This means 2011 Land Rover LR4 will have an easier job in driving up hills or pulling heavy equipment than 1991 Buick Riviera.
Compare all specifications:
| 1991 Buick Riviera | 2011 Land Rover LR4 | |
| Make | Buick | Land Rover |
| Model | Riviera | LR4 |
| Year Released | 1991 | 2011 |
| Body Type | Coupe | SUV |
| Engine Position | Front | Front |
| Engine Size | 3800 cc | 5000 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 170 HP | 375 HP |
| Engine RPM | 4800 RPM | 6500 RPM |
| Torque | 285 Nm | 508 Nm |
| Torque RPM | 3200 RPM | 3500 RPM |
| 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 | 2548 kg |
| Vehicle Length | 5040 mm | 4829 mm |
| Vehicle Width | 1830 mm | 1915 mm |
| Vehicle Height | 1350 mm | 1882 mm |
| Wheelbase Size | 2760 mm | 2885 mm |
