1966 Alfa Romeo Spider vs. 2001 Opel Signum
To start off, 2001 Opel Signum is newer by 35 year(s). Which means there will be less support and parts availability for 1966 Alfa Romeo Spider. In addition, the cost of maintenance, including insurance, on 1966 Alfa Romeo Spider would be higher. At 3,173 cc (6 cylinders), 2001 Opel Signum is equipped with a bigger engine. In terms of performance, 2001 Opel Signum (208 HP @ 6200 RPM) has 45 more horse power than 1966 Alfa Romeo Spider. (163 HP @ 5900 RPM) In normal driving conditions, 2001 Opel Signum should accelerate faster than 1966 Alfa Romeo Spider. With that said, vehicle weight also plays an important factor in acceleration. 2001 Opel Signum weights approximately 280 kg more than 1966 Alfa Romeo Spider. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2001 Opel Signum (300 Nm @ 4000 RPM) has 80 more torque (in Nm) than 1966 Alfa Romeo Spider. (220 Nm @ 4000 RPM). This means 2001 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1966 Alfa Romeo Spider.
Compare all specifications:
| 1966 Alfa Romeo Spider | 2001 Opel Signum | |
| Make | Alfa Romeo | Opel |
| Model | Spider | Signum |
| Year Released | 1966 | 2001 |
| Body Type | Roadster | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2582 cc | 3173 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 163 HP | 208 HP |
| Engine RPM | 5900 RPM | 6200 RPM |
| Torque | 220 Nm | 300 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Engine Bore Size | 83 mm | 87.5 mm |
| Engine Stroke Size | 79.6 mm | 88 mm |
| Engine Compression Ratio | 9.0:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1330 kg | 1610 kg |
| Vehicle Length | 4510 mm | 4640 mm |
| Vehicle Width | 1610 mm | 1800 mm |
| Vehicle Height | 1390 mm | 1470 mm |
| Wheelbase Size | 2510 mm | 2640 mm |
| Fuel Tank Capacity | 46 L | 52 L |
