1983 Alfa Romeo Spider vs. 1981 BMW 745
To start off, 1983 Alfa Romeo Spider is newer by 2 year(s). Which means there will be less support and parts availability for 1981 BMW 745. In addition, the cost of maintenance, including insurance, on 1981 BMW 745 would be higher. At 3,430 cc (6 cylinders), 1981 BMW 745 is equipped with a bigger engine. In terms of performance, 1981 BMW 745 (252 HP @ 5200 RPM) has 126 more horse power than 1983 Alfa Romeo Spider. (126 HP @ 5400 RPM) In normal driving conditions, 1981 BMW 745 should accelerate faster than 1983 Alfa Romeo Spider. With that said, vehicle weight also plays an important factor in acceleration. 1981 BMW 745 weights approximately 556 kg more than 1983 Alfa Romeo Spider. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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 BMW 745 (380 Nm @ 2200 RPM) has 197 more torque (in Nm) than 1983 Alfa Romeo Spider. (183 Nm @ 4000 RPM). This means 1981 BMW 745 will have an easier job in driving up hills or pulling heavy equipment than 1983 Alfa Romeo Spider. 1981 BMW 745 has automatic transmission and 1983 Alfa Romeo Spider has manual transmission. 1983 Alfa Romeo Spider will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1981 BMW 745 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1983 Alfa Romeo Spider | 1981 BMW 745 | |
| Make | Alfa Romeo | BMW |
| Model | Spider | 745 |
| Year Released | 1983 | 1981 |
| Body Type | Roadster | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1962 cc | 3430 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 126 HP | 252 HP |
| Engine RPM | 5400 RPM | 5200 RPM |
| Torque | 183 Nm | 380 Nm |
| Torque RPM | 4000 RPM | 2200 RPM |
| Engine Bore Size | 84 mm | 92 mm |
| Engine Stroke Size | 88.5 mm | 86 mm |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1040 kg | 1596 kg |
| Vehicle Length | 4250 mm | 4870 mm |
| Vehicle Width | 1640 mm | 1810 mm |
| Vehicle Height | 1300 mm | 1440 mm |
| Wheelbase Size | 2260 mm | 2770 mm |
| Fuel Tank Capacity | 50 L | 100 L |
