1981 Alfa Romeo Spider vs. 1984 Ford Sierra
To start off, 1984 Ford Sierra is newer by 3 year(s). Which means there will be less support and parts availability for 1981 Alfa Romeo Spider. In addition, the cost of maintenance, including insurance, on 1981 Alfa Romeo Spider would be higher. At 1,593 cc (4 cylinders), 1984 Ford Sierra is equipped with a bigger engine. In terms of performance, 1981 Alfa Romeo Spider (103 HP @ 5500 RPM) has 28 more horse power than 1984 Ford Sierra. (75 HP @ 4800 RPM). In normal driving conditions, 1981 Alfa Romeo Spider should accelerate faster than 1984 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1984 Ford Sierra weights approximately 40 kg more than 1981 Alfa Romeo Spider.
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, 1981 Alfa Romeo Spider (145 Nm @ 4500 RPM) has 22 more torque (in Nm) than 1984 Ford Sierra. (123 Nm @ 2900 RPM). This means 1981 Alfa Romeo Spider will have an easier job in driving up hills or pulling heavy equipment than 1984 Ford Sierra.
Compare all specifications:
| 1981 Alfa Romeo Spider | 1984 Ford Sierra | |
| Make | Alfa Romeo | Ford |
| Model | Spider | Sierra |
| Year Released | 1981 | 1984 |
| Engine Position | Front | Front |
| Engine Size | 1570 cc | 1593 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 103 HP | 75 HP |
| Engine RPM | 5500 RPM | 4800 RPM |
| Torque | 145 Nm | 123 Nm |
| Torque RPM | 4500 RPM | 2900 RPM |
| Engine Bore Size | 78 mm | 87.7 mm |
| Engine Stroke Size | 82 mm | 66 mm |
| Engine Compression Ratio | 9.0:1 | 9.5:1 |
| Drive Type | Rear | Rear |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1000 kg | 1040 kg |
| Vehicle Length | 4130 mm | 4430 mm |
| Vehicle Width | 1640 mm | 1730 mm |
| Vehicle Height | 1300 mm | 1370 mm |
| Wheelbase Size | 2260 mm | 2610 mm |
