1997 Alfa Romeo Spider vs. 1991 Ford Sierra
To start off, 1997 Alfa Romeo Spider is newer by 6 year(s). Which means there will be less support and parts availability for 1991 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1991 Ford Sierra would be higher. At 1,970 cc (4 cylinders), 1997 Alfa Romeo Spider is equipped with a bigger engine. In terms of performance, 1997 Alfa Romeo Spider (139 HP @ 6200 RPM) has 64 more horse power than 1991 Ford Sierra. (75 HP @ 4500 RPM). In normal driving conditions, 1997 Alfa Romeo Spider should accelerate faster than 1991 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1997 Alfa Romeo Spider weights approximately 240 kg more than 1991 Ford Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1997 Alfa Romeo Spider (186 Nm @ 4000 RPM) has 34 more torque (in Nm) than 1991 Ford Sierra. (152 Nm @ 2200 RPM). This means 1997 Alfa Romeo Spider will have an easier job in driving up hills or pulling heavy equipment than 1991 Ford Sierra.
Compare all specifications:
| 1997 Alfa Romeo Spider | 1991 Ford Sierra | |
| Make | Alfa Romeo | Ford |
| Model | Spider | Sierra |
| Year Released | 1997 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 1970 cc | 1751 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 139 HP | 75 HP |
| Engine RPM | 6200 RPM | 4500 RPM |
| Torque | 186 Nm | 152 Nm |
| Torque RPM | 4000 RPM | 2200 RPM |
| Engine Bore Size | 83 mm | 82.5 mm |
| Engine Stroke Size | 91 mm | 82 mm |
| Engine Compression Ratio | 10.0:1 | 21.5:1 |
| Fuel Type | Gasoline | Diesel |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1385 kg | 1145 kg |
| Vehicle Length | 4290 mm | 4430 mm |
| Vehicle Width | 1790 mm | 1700 mm |
| Vehicle Height | 1320 mm | 1370 mm |
| Wheelbase Size | 2600 mm | 2620 mm |
| Fuel Tank Capacity | 70 L | 60 L |
