2004 Audi S4 vs. 1981 BMW 745
To start off, 2004 Audi S4 is newer by 23 year(s). Which means there will be less support and parts availability for 1981 BMW 745. In addition, the cost of maintenance, including insurance, on 1981 BMW 745 would be higher. At 4,170 cc (8 cylinders), 2004 Audi S4 is equipped with a bigger engine. In terms of performance, 2004 Audi S4 (339 HP @ 7000 RPM) has 87 more horse power than 1981 BMW 745. (252 HP @ 5200 RPM). In normal driving conditions, 2004 Audi S4 should accelerate faster than 1981 BMW 745. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi S4 weights approximately 159 kg more than 1981 BMW 745. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 1981 BMW 745. In wet, icy, snow, or gravel driving conditions, 2004 Audi S4 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, 2004 Audi S4 (410 Nm @ 3500 RPM) has 30 more torque (in Nm) than 1981 BMW 745. (380 Nm @ 2200 RPM). This means 2004 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1981 BMW 745.
Compare all specifications:
2004 Audi S4 | 1981 BMW 745 | |
Make | Audi | BMW |
Model | S4 | 745 |
Year Released | 2004 | 1981 |
Body Type | Station Wagon | Sedan |
Engine Position | Front | Front |
Engine Size | 4170 cc | 3430 cc |
Engine Cylinders | 8 cylinders | 6 cylinders |
Engine Type | V | in-line |
Horse Power | 339 HP | 252 HP |
Engine RPM | 7000 RPM | 5200 RPM |
Torque | 410 Nm | 380 Nm |
Torque RPM | 3500 RPM | 2200 RPM |
Engine Bore Size | 84.5 mm | 92 mm |
Engine Stroke Size | 92.8 mm | 86 mm |
Engine Compression Ratio | 11.0:1 | 8.0:1 |
Top Speed | 250 km/hour | 227 km/hour |
Drive Type | 4WD | Rear |
Transmission Type | Automatic | Automatic |
Number of Seats | 5 seats | 5 seats |
Number of Doors | 5 doors | 4 doors |
Vehicle Weight | 1755 kg | 1596 kg |
Vehicle Length | 4590 mm | 4870 mm |
Vehicle Width | 1780 mm | 1810 mm |
Vehicle Height | 1430 mm | 1440 mm |
Wheelbase Size | 2430 mm | 2770 mm |
Fuel Tank Capacity | 63 L | 100 L |