1966 Alfa Romeo Spider vs. 2003 BMW M3
To start off, 2003 BMW M3 is newer by 37 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 3,168 cc (6 cylinders), 2003 BMW M3 is equipped with a bigger engine. In terms of performance, 2003 BMW M3 (342 HP @ 7900 RPM) has 179 more horse power than 1966 Alfa Romeo Spider. (163 HP @ 5900 RPM) In normal driving conditions, 2003 BMW M3 should accelerate faster than 1966 Alfa Romeo Spider. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW M3 weights approximately 55 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, 2003 BMW M3 (350 Nm @ 4900 RPM) has 130 more torque (in Nm) than 1966 Alfa Romeo Spider. (220 Nm @ 4000 RPM). This means 2003 BMW M3 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 | 2003 BMW M3 | |
| Make | Alfa Romeo | BMW |
| Model | Spider | M3 |
| Year Released | 1966 | 2003 |
| Body Type | Roadster | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2582 cc | 3168 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 163 HP | 342 HP |
| Engine RPM | 5900 RPM | 7900 RPM |
| Torque | 220 Nm | 350 Nm |
| Torque RPM | 4000 RPM | 4900 RPM |
| Engine Bore Size | 83 mm | 87 mm |
| Engine Stroke Size | 79.6 mm | 91 mm |
| Engine Compression Ratio | 9.0:1 | 11.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1330 kg | 1385 kg |
| Vehicle Length | 4510 mm | 4500 mm |
| Vehicle Width | 1610 mm | 1790 mm |
| Vehicle Height | 1390 mm | 1370 mm |
| Wheelbase Size | 2510 mm | 2730 mm |
| Fuel Tank Capacity | 46 L | 63 L |
