1991 BMW 518 vs. 1986 Rolls-Royce Silver Spirit II
To start off, 1991 BMW 518 is newer by 5 year(s). Which means there will be less support and parts availability for 1986 Rolls-Royce Silver Spirit II. In addition, the cost of maintenance, including insurance, on 1986 Rolls-Royce Silver Spirit II would be higher. At 6,750 cc (8 cylinders), 1986 Rolls-Royce Silver Spirit II is equipped with a bigger engine. In terms of performance, 1986 Rolls-Royce Silver Spirit II (215 HP @ 4200 RPM) has 101 more horse power than 1991 BMW 518. (114 HP @ 5500 RPM) In normal driving conditions, 1986 Rolls-Royce Silver Spirit II should accelerate faster than 1991 BMW 518. With that said, vehicle weight also plays an important factor in acceleration. 1986 Rolls-Royce Silver Spirit II weights approximately 1090 kg more than 1991 BMW 518. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 1986 Rolls-Royce Silver Spirit II (440 Nm @ 1450 RPM) has 275 more torque (in Nm) than 1991 BMW 518. (165 Nm @ 4250 RPM). This means 1986 Rolls-Royce Silver Spirit II will have an easier job in driving up hills or pulling heavy equipment than 1991 BMW 518. 1986 Rolls-Royce Silver Spirit II has automatic transmission and 1991 BMW 518 has manual transmission. 1991 BMW 518 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1986 Rolls-Royce Silver Spirit II will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1991 BMW 518 | 1986 Rolls-Royce Silver Spirit II | |
| Make | BMW | Rolls-Royce |
| Model | 518 | Silver Spirit II |
| Year Released | 1991 | 1986 |
| Engine Position | Front | Front |
| Engine Size | 1766 cc | 6750 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 114 HP | 215 HP |
| Engine RPM | 5500 RPM | 4200 RPM |
| Torque | 165 Nm | 440 Nm |
| Torque RPM | 4250 RPM | 1450 RPM |
| Engine Compression Ratio | 8.8:1 | 8.0:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1160 kg | 2250 kg |
| Vehicle Length | 4730 mm | 5270 mm |
| Vehicle Width | 1760 mm | 1900 mm |
| Vehicle Height | 1420 mm | 1500 mm |
| Wheelbase Size | 2770 mm | 3060 mm |
