1991 Audi S2 vs. 1987 BMW 628
To start off, 1991 Audi S2 is newer by 4 year(s). Which means there will be less support and parts availability for 1987 BMW 628. In addition, the cost of maintenance, including insurance, on 1987 BMW 628 would be higher. At 2,788 cc (6 cylinders), 1987 BMW 628 is equipped with a bigger engine. In terms of performance, 1991 Audi S2 (216 HP @ 5900 RPM) has 35 more horse power than 1987 BMW 628. (181 HP @ 6000 RPM). In normal driving conditions, 1991 Audi S2 should accelerate faster than 1987 BMW 628. With that said, vehicle weight also plays an important factor in acceleration. 1987 BMW 628 weights approximately 50 kg more than 1991 Audi S2.
Because 1991 Audi S2 is four wheel drive (4WD), it will have significant more traction and grip than 1987 BMW 628. In wet, icy, snow, or gravel driving conditions, 1991 Audi S2 will offer significantly more control. 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, 1991 Audi S2 (309 Nm @ 1950 RPM) has 69 more torque (in Nm) than 1987 BMW 628. (240 Nm @ 4000 RPM). This means 1991 Audi S2 will have an easier job in driving up hills or pulling heavy equipment than 1987 BMW 628.
Compare all specifications:
| 1991 Audi S2 | 1987 BMW 628 | |
| Make | Audi | BMW |
| Model | S2 | 628 |
| Year Released | 1991 | 1987 |
| Engine Position | Front | Front |
| Engine Size | 2226 cc | 2788 cc |
| Engine Cylinders | 5 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 216 HP | 181 HP |
| Engine RPM | 5900 RPM | 6000 RPM |
| Torque | 309 Nm | 240 Nm |
| Torque RPM | 1950 RPM | 4000 RPM |
| Engine Bore Size | 81.1 mm | 86 mm |
| Engine Stroke Size | 86.4 mm | 80 mm |
| Engine Compression Ratio | 9.3:1 | 9.3:1 |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1420 kg | 1470 kg |
| Vehicle Length | 4410 mm | 4760 mm |
| Vehicle Width | 1720 mm | 1730 mm |
| Vehicle Height | 1380 mm | 1370 mm |
| Wheelbase Size | 2560 mm | 2640 mm |
| Fuel Tank Capacity | 70 L | 70 L |
