1978 Alfa Romeo Giulietta vs. 1986 Jaguar XJS
To start off, 1986 Jaguar XJS is newer by 8 year(s). Which means there will be less support and parts availability for 1978 Alfa Romeo Giulietta. In addition, the cost of maintenance, including insurance, on 1978 Alfa Romeo Giulietta 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 109 more horse power than 1978 Alfa Romeo Giulietta. (108 HP @ 5600 RPM) In normal driving conditions, 1986 Jaguar XJS should accelerate faster than 1978 Alfa Romeo Giulietta. With that said, vehicle weight also plays an important factor in acceleration. 1986 Jaguar XJS weights approximately 559 kg more than 1978 Alfa Romeo Giulietta. 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 (331 Nm @ 4000 RPM) has 188 more torque (in Nm) than 1978 Alfa Romeo Giulietta. (143 Nm @ 4300 RPM). This means 1986 Jaguar XJS will have an easier job in driving up hills or pulling heavy equipment than 1978 Alfa Romeo Giulietta.
Compare all specifications:
| 1978 Alfa Romeo Giulietta | 1986 Jaguar XJS | |
| Make | Alfa Romeo | Jaguar |
| Model | Giulietta | XJS |
| Year Released | 1978 | 1986 |
| Engine Position | Front | Front |
| Engine Size | 1570 cc | 3590 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 108 HP | 217 HP |
| Engine RPM | 5600 RPM | 5300 RPM |
| Torque | 143 Nm | 331 Nm |
| Torque RPM | 4300 RPM | 4000 RPM |
| Engine Bore Size | 78 mm | 91.1 mm |
| Engine Stroke Size | 82 mm | 92 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1071 kg | 1630 kg |
| Vehicle Length | 4220 mm | 4880 mm |
| Vehicle Width | 1660 mm | 1800 mm |
| Vehicle Height | 1410 mm | 1270 mm |
| Wheelbase Size | 2460 mm | 2600 mm |
