2005 BMW X5 vs. 1981 Ferrari 512 BBi
To start off, 2005 BMW X5 is newer by 24 year(s). Which means there will be less support and parts availability for 1981 Ferrari 512 BBi. In addition, the cost of maintenance, including insurance, on 1981 Ferrari 512 BBi would be higher. At 4,942 cc, 1981 Ferrari 512 BBi is equipped with a bigger engine. In terms of performance, 1981 Ferrari 512 BBi (340 HP @ 6300 RPM) has 125 more horse power than 2005 BMW X5. (215 HP @ 4000 RPM) In normal driving conditions, 1981 Ferrari 512 BBi should accelerate faster than 2005 BMW X5. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW X5 weights approximately 671 kg more than 1981 Ferrari 512 BBi.
Because 2005 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 1981 Ferrari 512 BBi. In wet, icy, snow, or gravel driving conditions, 2005 BMW X5 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, 2005 BMW X5 (520 Nm @ 2000 RPM) has 69 more torque (in Nm) than 1981 Ferrari 512 BBi. (451 Nm @ 4200 RPM). This means 2005 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 1981 Ferrari 512 BBi.
Compare all specifications:
| 2005 BMW X5 | 1981 Ferrari 512 BBi | |
| Make | BMW | Ferrari |
| Model | X5 | 512 BBi |
| Year Released | 2005 | 1981 |
| Engine Position | Front | Middle |
| Engine Size | 2926 cc | 4942 cc |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 215 HP | 340 HP |
| Engine RPM | 4000 RPM | 6300 RPM |
| Torque | 520 Nm | 451 Nm |
| Torque RPM | 2000 RPM | 4200 RPM |
| Engine Bore Size | 84 mm | 82.1 mm |
| Engine Stroke Size | 90 mm | 78 mm |
| Engine Compression Ratio | 18.0:1 | 9.2:1 |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 2170 kg | 1499 kg |
| Vehicle Length | 4670 mm | 4410 mm |
| Vehicle Width | 1880 mm | 1840 mm |
| Vehicle Height | 1720 mm | 1130 mm |
| Wheelbase Size | 2830 mm | 2510 mm |
| Fuel Tank Capacity | 93 L | 120 L |
