1977 BMW 728 vs. 1986 Jaguar XJS
To start off, 1986 Jaguar XJS is newer by 9 year(s). Which means there will be less support and parts availability for 1977 BMW 728. In addition, the cost of maintenance, including insurance, on 1977 BMW 728 would be higher. At 3,590 cc (6 cylinders), 1986 Jaguar XJS is equipped with a bigger engine. In terms of performance, 1986 Jaguar XJS (217 HP @ 5300 RPM) has 47 more horse power than 1977 BMW 728. (170 HP @ 6000 RPM) In normal driving conditions, 1986 Jaguar XJS should accelerate faster than 1977 BMW 728. With that said, vehicle weight also plays an important factor in acceleration. 1986 Jaguar XJS weights approximately 94 kg more than 1977 BMW 728. 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 Jaguar XJS (325 Nm @ 4000 RPM) has 90 more torque (in Nm) than 1977 BMW 728. (235 Nm @ 3700 RPM). This means 1986 Jaguar XJS will have an easier job in driving up hills or pulling heavy equipment than 1977 BMW 728.
Compare all specifications:
| 1977 BMW 728 | 1986 Jaguar XJS | |
| Make | BMW | Jaguar |
| Model | 728 | XJS |
| Year Released | 1977 | 1986 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2788 cc | 3590 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 170 HP | 217 HP |
| Engine RPM | 6000 RPM | 5300 RPM |
| Torque | 235 Nm | 325 Nm |
| Torque RPM | 3700 RPM | 4000 RPM |
| Engine Bore Size | 86 mm | 91 mm |
| Engine Stroke Size | 80 mm | 92 mm |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1536 kg | 1630 kg |
| Vehicle Length | 4870 mm | 4880 mm |
| Vehicle Width | 1810 mm | 1800 mm |
| Vehicle Height | 1440 mm | 1270 mm |
| Wheelbase Size | 2800 mm | 2600 mm |
| Fuel Tank Capacity | 85 L | 90 L |
