1985 Alfa Romeo 90 vs. 1981 BMW 628
To start off, 1985 Alfa Romeo 90 is newer by 4 year(s). Which means there will be less support and parts availability for 1981 BMW 628. In addition, the cost of maintenance, including insurance, on 1981 BMW 628 would be higher. At 2,788 cc (6 cylinders), 1981 BMW 628 is equipped with a bigger engine. In terms of performance, 1981 BMW 628 (181 HP @ 6000 RPM) has 72 more horse power than 1985 Alfa Romeo 90. (109 HP @ 4200 RPM) In normal driving conditions, 1981 BMW 628 should accelerate faster than 1985 Alfa Romeo 90. With that said, vehicle weight also plays an important factor in acceleration. 1981 BMW 628 weights approximately 220 kg more than 1985 Alfa Romeo 90. 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, 1985 Alfa Romeo 90 (246 Nm @ 2300 RPM) has 6 more torque (in Nm) than 1981 BMW 628. (240 Nm @ 4000 RPM). This means 1985 Alfa Romeo 90 will have an easier job in driving up hills or pulling heavy equipment than 1981 BMW 628.
Compare all specifications:
| 1985 Alfa Romeo 90 | 1981 BMW 628 | |
| Make | Alfa Romeo | BMW |
| Model | 90 | 628 |
| Year Released | 1985 | 1981 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 2788 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 109 HP | 181 HP |
| Engine RPM | 4200 RPM | 6000 RPM |
| Torque | 246 Nm | 240 Nm |
| Torque RPM | 2300 RPM | 4000 RPM |
| Engine Bore Size | 92 mm | 86 mm |
| Engine Stroke Size | 90 mm | 80 mm |
| Engine Compression Ratio | 22.0:1 | 9.3:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1250 kg | 1470 kg |
| Vehicle Length | 4400 mm | 4760 mm |
| Vehicle Width | 1650 mm | 1730 mm |
| Vehicle Height | 1430 mm | 1370 mm |
| Wheelbase Size | 2460 mm | 2640 mm |
| Fuel Tank Capacity | 49 L | 70 L |
