1991 Buick Riviera vs. 2007 Volvo S40
To start off, 2007 Volvo S40 is newer by 16 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, 1991 Buick Riviera (170 HP @ 4800 RPM) has 71 more horse power than 2007 Volvo S40. (99 HP @ 6000 RPM). In normal driving conditions, 1991 Buick Riviera should accelerate faster than 2007 Volvo S40. With that said, vehicle weight also plays an important factor in acceleration. 1991 Buick Riviera weights approximately 210 kg more than 2007 Volvo S40. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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 135 more torque (in Nm) than 2007 Volvo S40. (150 Nm @ 4000 RPM). This means 1991 Buick Riviera will have an easier job in driving up hills or pulling heavy equipment than 2007 Volvo S40. 1991 Buick Riviera has automatic transmission and 2007 Volvo S40 has manual transmission. 2007 Volvo S40 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1991 Buick Riviera will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1991 Buick Riviera | 2007 Volvo S40 | |
| Make | Buick | Volvo |
| Model | Riviera | S40 |
| Year Released | 1991 | 2007 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3800 cc | 1595 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 170 HP | 99 HP |
| Engine RPM | 4800 RPM | 6000 RPM |
| Torque | 285 Nm | 150 Nm |
| Torque RPM | 3200 RPM | 4000 RPM |
| Engine Bore Size | 96.5 mm | 79 mm |
| Engine Stroke Size | 86.4 mm | 81.4 mm |
| Engine Compression Ratio | 8.5:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1520 kg | 1310 kg |
| Vehicle Length | 5040 mm | 4590 mm |
| Vehicle Width | 1830 mm | 1780 mm |
| Vehicle Height | 1350 mm | 1460 mm |
| Wheelbase Size | 2760 mm | 2650 mm |
