2009 Audi A4 vs. 1989 Porsche 911
To start off, 2009 Audi A4 is newer by 20 year(s). Which means there will be less support and parts availability for 1989 Porsche 911. In addition, the cost of maintenance, including insurance, on 1989 Porsche 911 would be higher. At 3,600 cc (6 cylinders), 1989 Porsche 911 is equipped with a bigger engine. In terms of performance, 1989 Porsche 911 (247 HP @ 6100 RPM) has 25 more horse power than 2009 Audi A4. (222 HP @ 4000 RPM) In normal driving conditions, 1989 Porsche 911 should accelerate faster than 2009 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A4 weights approximately 260 kg more than 1989 Porsche 911.
Because 2009 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 1989 Porsche 911. In wet, icy, snow, or gravel driving conditions, 2009 Audi A4 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 Audi A4 (450 Nm @ 1400 RPM) has 140 more torque (in Nm) than 1989 Porsche 911. (310 Nm @ 4800 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1989 Porsche 911.
Compare all specifications:
| 2009 Audi A4 | 1989 Porsche 911 | |
| Make | Audi | Porsche |
| Model | A4 | 911 |
| Year Released | 2009 | 1989 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 2965 cc | 3600 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 222 HP | 247 HP |
| Engine RPM | 4000 RPM | 6100 RPM |
| Torque | 450 Nm | 310 Nm |
| Torque RPM | 1400 RPM | 4800 RPM |
| Engine Bore Size | 83 mm | 100 mm |
| Engine Stroke Size | 91.4 mm | 76.4 mm |
| Engine Compression Ratio | 17.0:1 | 11.3:1 |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1610 kg | 1350 kg |
| Vehicle Length | 4550 mm | 4300 mm |
| Vehicle Width | 1780 mm | 1660 mm |
| Vehicle Height | 1430 mm | 1330 mm |
| Wheelbase Size | 2660 mm | 2270 mm |
| Fuel Tank Capacity | 70 L | 77 L |
