1999 Audi A4 vs. 1973 Citroen SM
To start off, 1999 Audi A4 is newer by 26 year(s). Which means there will be less support and parts availability for 1973 Citroen SM. In addition, the cost of maintenance, including insurance, on 1973 Citroen SM would be higher. At 2,670 cc (6 cylinders), 1973 Citroen SM is equipped with a bigger engine. In terms of performance, 1973 Citroen SM (171 HP @ 5500 RPM) has 48 more horse power than 1999 Audi A4. (123 HP @ 5800 RPM) In normal driving conditions, 1973 Citroen SM should accelerate faster than 1999 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 1973 Citroen SM weights approximately 94 kg more than 1999 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1999 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 1973 Citroen SM. In wet, icy, snow, or gravel driving conditions, 1999 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, 1973 Citroen SM (237 Nm @ 4000 RPM) has 69 more torque (in Nm) than 1999 Audi A4. (168 Nm @ 3500 RPM). This means 1973 Citroen SM will have an easier job in driving up hills or pulling heavy equipment than 1999 Audi A4.
Compare all specifications:
1999 Audi A4 | 1973 Citroen SM | |
Make | Audi | Citroen |
Model | A4 | SM |
Year Released | 1999 | 1973 |
Body Type | Sedan | Coupe |
Engine Position | Front | Front |
Engine Size | 1781 cc | 2670 cc |
Engine Cylinders | 4 cylinders | 6 cylinders |
Engine Type | in-line | V |
Horse Power | 123 HP | 171 HP |
Engine RPM | 5800 RPM | 5500 RPM |
Torque | 168 Nm | 237 Nm |
Torque RPM | 3500 RPM | 4000 RPM |
Engine Bore Size | 81 mm | 87 mm |
Engine Stroke Size | 86.4 mm | 75 mm |
Engine Compression Ratio | 10.3:1 | 9.0:1 |
Drive Type | 4WD | Front |
Number of Seats | 5 seats | 2 seats |
Number of Doors | 4 doors | 2 doors |
Vehicle Weight | 1356 kg | 1450 kg |
Vehicle Length | 4480 mm | 4900 mm |
Vehicle Width | 1740 mm | 1850 mm |
Vehicle Height | 1420 mm | 1330 mm |
Wheelbase Size | 2610 mm | 2960 mm |
Fuel Tank Capacity | 60 L | 25 L |