1991 Buick Riviera vs. 2012 Toyota 4Runner
To start off, 2012 Toyota 4Runner is newer by 21 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 4,000 cc (6 cylinders), 2012 Toyota 4Runner is equipped with a bigger engine. In terms of performance, 2012 Toyota 4Runner (270 HP @ 5600 RPM) has 100 more horse power than 1991 Buick Riviera. (170 HP @ 4800 RPM) In normal driving conditions, 2012 Toyota 4Runner should accelerate faster than 1991 Buick Riviera. With that said, vehicle weight also plays an important factor in acceleration. 2012 Toyota 4Runner weights approximately 635 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 2012 Toyota 4Runner 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, 2012 Toyota 4Runner 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, 2012 Toyota 4Runner (376 Nm @ 4400 RPM) has 91 more torque (in Nm) than 1991 Buick Riviera. (285 Nm @ 3200 RPM). This means 2012 Toyota 4Runner will have an easier job in driving up hills or pulling heavy equipment than 1991 Buick Riviera.
Compare all specifications:
| 1991 Buick Riviera | 2012 Toyota 4Runner | |
| Make | Buick | Toyota |
| Model | Riviera | 4Runner |
| Year Released | 1991 | 2012 |
| Body Type | Coupe | SUV |
| Engine Position | Front | Front |
| Engine Size | 3800 cc | 4000 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Horse Power | 170 HP | 270 HP |
| Engine RPM | 4800 RPM | 5600 RPM |
| Torque | 285 Nm | 376 Nm |
| Torque RPM | 3200 RPM | 4400 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 7 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1520 kg | 2155 kg |
| Vehicle Length | 5040 mm | 4823 mm |
| Vehicle Width | 1830 mm | 1925 mm |
| Vehicle Height | 1350 mm | 1885 mm |
| Wheelbase Size | 2760 mm | 2789 mm |
