1991 Audi 100 vs. 2009 BMW 523
To start off, 2009 BMW 523 is newer by 18 year(s). Which means there will be less support and parts availability for 1991 Audi 100. In addition, the cost of maintenance, including insurance, on 1991 Audi 100 would be higher. At 2,771 cc (6 cylinders), 1991 Audi 100 is equipped with a bigger engine. In terms of performance, 2009 BMW 523 (175 HP @ 5800 RPM) has 4 more horse power than 1991 Audi 100. (171 HP @ 5500 RPM) In normal driving conditions, 2009 BMW 523 should accelerate faster than 1991 Audi 100. With that said, vehicle weight also plays an important factor in acceleration. 1991 Audi 100 weights approximately 10 kg more than 2009 BMW 523.
Because 1991 Audi 100 is four wheel drive (4WD), it will have significant more traction and grip than 2009 BMW 523. In wet, icy, snow, or gravel driving conditions, 1991 Audi 100 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 100 (251 Nm @ 3000 RPM) has 21 more torque (in Nm) than 2009 BMW 523. (230 Nm @ 3500 RPM). This means 1991 Audi 100 will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 523.
Compare all specifications:
| 1991 Audi 100 | 2009 BMW 523 | |
| Make | Audi | BMW |
| Model | 100 | 523 |
| Year Released | 1991 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 2771 cc | 2497 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 171 HP | 175 HP |
| Engine RPM | 5500 RPM | 5800 RPM |
| Torque | 251 Nm | 230 Nm |
| Torque RPM | 3000 RPM | 3500 RPM |
| Engine Bore Size | 82.5 mm | 82 mm |
| Engine Stroke Size | 86.4 mm | 78.8 mm |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1500 kg | 1490 kg |
| Vehicle Length | 4800 mm | 4850 mm |
| Vehicle Width | 1780 mm | 1470 mm |
| Vehicle Height | 1450 mm | 1850 mm |
| Wheelbase Size | 2690 mm | 2890 mm |
| Fuel Consumption Overall | 8.8 L/100km | 8.5 L/100km |
| Fuel Tank Capacity | 80 L | 70 L |
