1991 Audi S2 vs. 2009 BMW 650
To start off, 2009 BMW 650 is newer by 18 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 4,799 cc (8 cylinders), 2009 BMW 650 is equipped with a bigger engine. In terms of performance, 2009 BMW 650 (362 HP @ 6300 RPM) has 146 more horse power than 1991 Audi S2. (216 HP @ 5900 RPM) In normal driving conditions, 2009 BMW 650 should accelerate faster than 1991 Audi S2. With that said, vehicle weight also plays an important factor in acceleration. 1991 Audi S2 weights approximately 35 kg more than 2009 BMW 650.
Because 1991 Audi S2 is four wheel drive (4WD), it will have significant more traction and grip than 2009 BMW 650. 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, 2009 BMW 650 (490 Nm @ 3400 RPM) has 181 more torque (in Nm) than 1991 Audi S2. (309 Nm @ 1950 RPM). This means 2009 BMW 650 will have an easier job in driving up hills or pulling heavy equipment than 1991 Audi S2.
Compare all specifications:
| 1991 Audi S2 | 2009 BMW 650 | |
| Make | Audi | BMW |
| Model | S2 | 650 |
| Year Released | 1991 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 2226 cc | 4799 cc |
| Engine Cylinders | 5 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 216 HP | 362 HP |
| Engine RPM | 5900 RPM | 6300 RPM |
| Torque | 309 Nm | 490 Nm |
| Torque RPM | 1950 RPM | 3400 RPM |
| Engine Compression Ratio | 9.3:1 | 10.5:1 |
| Acceleration 0-100mph | 6.1 seconds | 5.7 seconds |
| 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 | 1385 kg |
| Vehicle Length | 4410 mm | 4830 mm |
| Vehicle Width | 1720 mm | 1380 mm |
| Vehicle Height | 1380 mm | 1860 mm |
| Wheelbase Size | 2560 mm | 2790 mm |
| Fuel Consumption Overall | 8.3 L/100km | 8.6 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
