2009 Alpina B3 vs. 1973 Citroen SM
To start off, 2009 Alpina B3 is newer by 36 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 3,301 cc (6 cylinders), 2009 Alpina B3 is equipped with a bigger engine. In terms of performance, 2009 Alpina B3 (276 HP) has 96 more horse power than 1973 Citroen SM. (180 HP). In normal driving conditions, 2009 Alpina B3 should accelerate faster than 1973 Citroen SM.
Because 2009 Alpina B3 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, 2009 Alpina B3 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 Alpina B3 (335 Nm) has 102 more torque (in Nm) than 1973 Citroen SM. (233 Nm). This means 2009 Alpina B3 will have an easier job in driving up hills or pulling heavy equipment than 1973 Citroen SM.
Compare all specifications:
| 2009 Alpina B3 | 1973 Citroen SM | |
| Make | Alpina | Citroen |
| Model | B3 | SM |
| Year Released | 2009 | 1973 |
| Body Type | Station Wagon | Coupe |
| Engine Position | Front | Front |
| Engine Size | 3301 cc | 2670 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 276 HP | 180 HP |
| Torque | 335 Nm | 233 Nm |
| Engine Bore Size | 86.4 mm | 86.9 mm |
| Engine Stroke Size | 93.9 mm | 74.9 mm |
| Engine Compression Ratio | 10.0:1 | 9.0:1 |
| Drive Type | 4WD | Front |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Length | 4480 mm | 4920 mm |
| Vehicle Width | 1750 mm | 1840 mm |
| Vehicle Height | 1420 mm | 1330 mm |
| Wheelbase Size | 2730 mm | 2960 mm |
