1991 Oldsmobile Silhouette vs. 1978 Porsche 911
To start off, 1991 Oldsmobile Silhouette is newer by 13 year(s). Which means there will be less support and parts availability for 1978 Porsche 911. In addition, the cost of maintenance, including insurance, on 1978 Porsche 911 would be higher. At 3,135 cc (6 cylinders), 1991 Oldsmobile Silhouette is equipped with a bigger engine. In terms of performance, 1978 Porsche 911 (185 HP @ 5500 RPM) has 67 more horse power than 1991 Oldsmobile Silhouette. (118 HP @ 4200 RPM) In normal driving conditions, 1978 Porsche 911 should accelerate faster than 1991 Oldsmobile Silhouette. With that said, vehicle weight also plays an important factor in acceleration. 1991 Oldsmobile Silhouette weights approximately 470 kg more than 1978 Porsche 911.
Because 1978 Porsche 911 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 1978 Porsche 911. 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, 1978 Porsche 911 (265 Nm @ 4100 RPM) has 28 more torque (in Nm) than 1991 Oldsmobile Silhouette. (237 Nm @ 2200 RPM). This means 1978 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1991 Oldsmobile Silhouette. 1991 Oldsmobile Silhouette has automatic transmission and 1978 Porsche 911 has manual transmission. 1978 Porsche 911 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:
| 1991 Oldsmobile Silhouette | 1978 Porsche 911 | |
| Make | Oldsmobile | Porsche |
| Model | Silhouette | 911 |
| Year Released | 1991 | 1978 |
| Body Type | Minivan | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 3135 cc | 2994 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 118 HP | 185 HP |
| Engine RPM | 4200 RPM | 5500 RPM |
| Torque | 237 Nm | 265 Nm |
| Torque RPM | 2200 RPM | 4100 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 7 seats | 4 seats |
| Vehicle Weight | 1650 kg | 1180 kg |
| Vehicle Length | 4940 mm | 4300 mm |
| Vehicle Width | 1880 mm | 1660 mm |
| Vehicle Height | 1680 mm | 1330 mm |
| Wheelbase Size | 2800 mm | 2280 mm |
