1999 Audi TT vs. 1971 Citroen SM
To start off, 1999 Audi TT is newer by 28 year(s). Which means there will be less support and parts availability for 1971 Citroen SM. In addition, the cost of maintenance, including insurance, on 1971 Citroen SM would be higher. At 2,670 cc (6 cylinders), 1971 Citroen SM is equipped with a bigger engine. In terms of performance, 1999 Audi TT (178 HP @ 5500 RPM) has 20 more horse power than 1971 Citroen SM. (158 HP @ 5500 RPM). In normal driving conditions, 1999 Audi TT should accelerate faster than 1971 Citroen SM. With that said, vehicle weight also plays an important factor in acceleration. 1971 Citroen SM weights approximately 110 kg more than 1999 Audi TT.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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, both vehicles can yield 235 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles.
Compare all specifications:
| 1999 Audi TT | 1971 Citroen SM | |
| Make | Audi | Citroen |
| Model | TT | SM |
| Year Released | 1999 | 1971 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 2670 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 178 HP | 158 HP |
| Engine RPM | 5500 RPM | 5500 RPM |
| Torque | 235 Nm | 235 Nm |
| Torque RPM | 1950 RPM | 4000 RPM |
| Engine Bore Size | 81 mm | 87 mm |
| Engine Stroke Size | 86.4 mm | 75 mm |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1340 kg | 1450 kg |
| Vehicle Length | 4050 mm | 4900 mm |
| Vehicle Width | 1770 mm | 1850 mm |
| Vehicle Height | 1360 mm | 1330 mm |
| Wheelbase Size | 2430 mm | 2950 mm |
| Fuel Tank Capacity | 55 L | 89 L |
