1981 Porsche 911 vs. 1991 Rolls-Royce Silver Spirit
To start off, 1991 Rolls-Royce Silver Spirit is newer by 10 year(s). Which means there will be less support and parts availability for 1981 Porsche 911. In addition, the cost of maintenance, including insurance, on 1981 Porsche 911 would be higher. At 6,750 cc (8 cylinders), 1991 Rolls-Royce Silver Spirit is equipped with a bigger engine. In terms of performance, 1981 Porsche 911 (232 HP @ 5900 RPM) has 24 more horse power than 1991 Rolls-Royce Silver Spirit. (208 HP @ 3900 RPM). In normal driving conditions, 1981 Porsche 911 should accelerate faster than 1991 Rolls-Royce Silver Spirit. With that said, vehicle weight also plays an important factor in acceleration. 1991 Rolls-Royce Silver Spirit weights approximately 1120 kg more than 1981 Porsche 911.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front 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 Rolls-Royce Silver Spirit (403 Nm @ 2000 RPM) has 119 more torque (in Nm) than 1981 Porsche 911. (284 Nm @ 4800 RPM). This means 1991 Rolls-Royce Silver Spirit will have an easier job in driving up hills or pulling heavy equipment than 1981 Porsche 911.
Compare all specifications:
| 1981 Porsche 911 | 1991 Rolls-Royce Silver Spirit | |
| Make | Porsche | Rolls-Royce |
| Model | 911 | Silver Spirit |
| Year Released | 1981 | 1991 |
| Engine Position | Rear | Front |
| Engine Size | 3164 cc | 6750 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | boxer | V |
| Horse Power | 232 HP | 208 HP |
| Engine RPM | 5900 RPM | 3900 RPM |
| Torque | 284 Nm | 403 Nm |
| Torque RPM | 4800 RPM | 2000 RPM |
| Drive Type | Rear | Rear |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 1260 kg | 2380 kg |
| Vehicle Length | 4300 mm | 5280 mm |
| Vehicle Width | 1660 mm | 1890 mm |
| Vehicle Height | 1330 mm | 1490 mm |
| Wheelbase Size | 2270 mm | 3070 mm |
