1971 Buick Riviera vs. 1970 Innocenti J4
To start off, 1971 Buick Riviera is newer by 1 year(s). Which means there will be less support and parts availability for 1970 Innocenti J4. In addition, the cost of maintenance, including insurance, on 1970 Innocenti J4 would be higher. At 7,468 cc (8 cylinders), 1971 Buick Riviera is equipped with a bigger engine. In terms of performance, 1971 Buick Riviera (311 HP @ 4200 RPM) has 255 more horse power than 1970 Innocenti J4. (56 HP @ 5500 RPM). In normal driving conditions, 1971 Buick Riviera should accelerate faster than 1970 Innocenti J4. With that said, vehicle weight also plays an important factor in acceleration. 1971 Buick Riviera weights approximately 1160 kg more than 1970 Innocenti J4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1971 Buick Riviera is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1971 Buick Riviera. However, in wet, icy, snow, or gravel driving conditions, 1970 Innocenti J4, being front wheel drive (FWD), will offer much better control with better grip. 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, 1971 Buick Riviera (617 Nm @ 2600 RPM) has 534 more torque (in Nm) than 1970 Innocenti J4. (83 Nm @ 2500 RPM). This means 1971 Buick Riviera will have an easier job in driving up hills or pulling heavy equipment than 1970 Innocenti J4. 1971 Buick Riviera has automatic transmission and 1970 Innocenti J4 has manual transmission. 1970 Innocenti J4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1971 Buick Riviera will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1971 Buick Riviera | 1970 Innocenti J4 | |
| Make | Buick | Innocenti |
| Model | Riviera | J4 |
| Year Released | 1971 | 1970 |
| Engine Position | Front | Front |
| Engine Size | 7468 cc | 1097 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 311 HP | 56 HP |
| Engine RPM | 4200 RPM | 5500 RPM |
| Torque | 617 Nm | 83 Nm |
| Torque RPM | 2600 RPM | 2500 RPM |
| Engine Compression Ratio | 8.3:1 | 21.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Manual |
| Vehicle Weight | 2040 kg | 880 kg |
| Vehicle Length | 5560 mm | 3720 mm |
| Vehicle Width | 2040 mm | 1540 mm |
| Vehicle Height | 1380 mm | 1380 mm |
| Wheelbase Size | 3110 mm | 2380 mm |
