1991 Audi S2 vs. 2011 BMW 520
To start off, 2011 BMW 520 is newer by 20 year(s). Which means there will be less support and parts availability for 1991 Audi S2. In addition, the cost of maintenance, including insurance, on 1991 Audi S2 would be higher. At 2,226 cc (5 cylinders), 1991 Audi S2 is equipped with a bigger engine. In terms of performance, 1991 Audi S2 (216 HP @ 5900 RPM) has 34 more horse power than 2011 BMW 520. (182 HP @ 5000 RPM). In normal driving conditions, 1991 Audi S2 should accelerate faster than 2011 BMW 520. With that said, vehicle weight also plays an important factor in acceleration. 2011 BMW 520 weights approximately 370 kg more than 1991 Audi S2.
Because 1991 Audi S2 is four wheel drive (4WD), it will have significant more traction and grip than 2011 BMW 520. 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 39 more torque (in Nm) than 2011 BMW 520. (270 Nm @ 4500 RPM). This means 1991 Audi S2 will have an easier job in driving up hills or pulling heavy equipment than 2011 BMW 520. 2011 BMW 520 has automatic transmission and 1991 Audi S2 has manual transmission. 1991 Audi S2 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2011 BMW 520 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1991 Audi S2 | 2011 BMW 520 | |
| Make | Audi | BMW |
| Model | S2 | 520 |
| Year Released | 1991 | 2011 |
| Engine Position | Front | Front |
| Engine Size | 2226 cc | 1997 cc |
| Engine Cylinders | 5 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 216 HP | 182 HP |
| Engine RPM | 5900 RPM | 5000 RPM |
| Torque | 309 Nm | 270 Nm |
| Torque RPM | 1950 RPM | 4500 RPM |
| Engine Bore Size | 81.1 mm | 90.1 mm |
| Engine Stroke Size | 86.4 mm | 84 mm |
| Acceleration 0-100mph | 6.1 seconds | 8.4 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | 8-speed shiftable automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1420 kg | 1790 kg |
| Vehicle Length | 4410 mm | 4907 mm |
| Vehicle Width | 1720 mm | 1860 mm |
| Vehicle Height | 1380 mm | 1462 mm |
| Wheelbase Size | 2560 mm | 2968 mm |
| Fuel Tank Capacity | 70 L | 70 L |
