1979 Mazda RX-7 vs. 1991 Oldsmobile Silhouette
To start off, 1991 Oldsmobile Silhouette is newer by 12 year(s). Which means there will be less support and parts availability for 1979 Mazda RX-7. In addition, the cost of maintenance, including insurance, on 1979 Mazda RX-7 would be higher. At 3,135 cc (6 cylinders), 1991 Oldsmobile Silhouette is equipped with a bigger engine. In terms of performance, 1991 Oldsmobile Silhouette (164 HP @ 4300 RPM) has 60 more horse power than 1979 Mazda RX-7. (104 HP @ 6000 RPM) In normal driving conditions, 1991 Oldsmobile Silhouette should accelerate faster than 1979 Mazda RX-7. With that said, vehicle weight also plays an important factor in acceleration. 1991 Oldsmobile Silhouette weights approximately 660 kg more than 1979 Mazda RX-7. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1979 Mazda RX-7 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 1979 Mazda RX-7. However, in wet, icy, snow, or gravel driving conditions, 1991 Oldsmobile Silhouette, 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, 1991 Oldsmobile Silhouette (298 Nm @ 3200 RPM) has 153 more torque (in Nm) than 1979 Mazda RX-7. (145 Nm @ 4000 RPM). This means 1991 Oldsmobile Silhouette will have an easier job in driving up hills or pulling heavy equipment than 1979 Mazda RX-7. 1991 Oldsmobile Silhouette has automatic transmission and 1979 Mazda RX-7 has manual transmission. 1979 Mazda RX-7 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1991 Oldsmobile Silhouette will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1979 Mazda RX-7 | 1991 Oldsmobile Silhouette | |
| Make | Mazda | Oldsmobile |
| Model | RX-7 | Silhouette |
| Year Released | 1979 | 1991 |
| Body Type | Coupe | Minivan |
| Engine Position | Front | Front |
| Engine Size | 2292 cc | 3135 cc |
| Engine Type | dual-disk rotary | in-line |
| Horse Power | 104 HP | 164 HP |
| Engine RPM | 6000 RPM | 4300 RPM |
| Torque | 145 Nm | 298 Nm |
| Torque RPM | 4000 RPM | 3200 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Automatic |
| Vehicle Weight | 1060 kg | 1720 kg |
| Vehicle Length | 4290 mm | 4940 mm |
| Vehicle Width | 1680 mm | 1880 mm |
| Vehicle Height | 1270 mm | 1680 mm |
| Wheelbase Size | 2430 mm | 2800 mm |
