1973 BMW 1502 vs. 2005 Smart Roadster
To start off, 2005 Smart Roadster is newer by 32 year(s). Which means there will be less support and parts availability for 1973 BMW 1502. In addition, the cost of maintenance, including insurance, on 1973 BMW 1502 would be higher. At 1,573 cc (4 cylinders), 1973 BMW 1502 is equipped with a bigger engine. In terms of performance, 1973 BMW 1502 (85 HP @ 5800 RPM) has 4 more horse power than 2005 Smart Roadster. (81 HP @ 5250 RPM). In normal driving conditions, 1973 BMW 1502 should accelerate faster than 2005 Smart Roadster. With that said, vehicle weight also plays an important factor in acceleration. 1973 BMW 1502 weights approximately 42 kg more than 2005 Smart Roadster. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1973 BMW 1502 (130 Nm @ 3500 RPM) has 20 more torque (in Nm) than 2005 Smart Roadster. (110 Nm @ 2250 RPM). This means 1973 BMW 1502 will have an easier job in driving up hills or pulling heavy equipment than 2005 Smart Roadster.
Compare all specifications:
| 1973 BMW 1502 | 2005 Smart Roadster | |
| Make | BMW | Smart |
| Model | 1502 | Roadster |
| Year Released | 1973 | 2005 |
| Engine Position | Front | Rear |
| Engine Size | 1573 cc | 698 cc |
| Engine Cylinders | 4 cylinders | 3 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 85 HP | 81 HP |
| Engine RPM | 5800 RPM | 5250 RPM |
| Torque | 130 Nm | 110 Nm |
| Torque RPM | 3500 RPM | 2250 RPM |
| Engine Bore Size | 84 mm | 66.5 mm |
| Engine Stroke Size | 71 mm | 67 mm |
| Engine Compression Ratio | 8.6:1 | 9.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 930 kg | 888 kg |
| Vehicle Length | 4240 mm | 3430 mm |
| Vehicle Width | 1600 mm | 1620 mm |
| Vehicle Height | 1420 mm | 1200 mm |
| Wheelbase Size | 2510 mm | 2370 mm |
| Fuel Tank Capacity | 50 L | 35 L |
