2008 BMW X5 vs. 1971 AC 428
To start off, 2008 BMW X5 is newer by 37 year(s). Which means there will be less support and parts availability for 1971 AC 428. In addition, the cost of maintenance, including insurance, on 1971 AC 428 would be higher. At 7,003 cc (8 cylinders), 1971 AC 428 is equipped with a bigger engine. In terms of performance, 1971 AC 428 (298 HP @ 4600 RPM) has 38 more horse power than 2008 BMW X5. (260 HP @ 6600 RPM) In normal driving conditions, 1971 AC 428 should accelerate faster than 2008 BMW X5. With that said, vehicle weight also plays an important factor in acceleration. 2008 BMW X5 weights approximately 120 kg more than 1971 AC 428.
Because 2008 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 1971 AC 428. In wet, icy, snow, or gravel driving conditions, 2008 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, 1971 AC 428 (639 Nm @ 2800 RPM) has 334 more torque (in Nm) than 2008 BMW X5. (305 Nm @ 2750 RPM). This means 1971 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 2008 BMW X5.
Compare all specifications:
| 2008 BMW X5 | 1971 AC 428 | |
| Make | BMW | AC |
| Model | X5 | 428 |
| Year Released | 2008 | 1971 |
| Engine Position | Front | Front |
| Engine Size | 3001 cc | 7003 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 260 HP | 298 HP |
| Engine RPM | 6600 RPM | 4600 RPM |
| Torque | 305 Nm | 639 Nm |
| Torque RPM | 2750 RPM | 2800 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1550 kg | 1430 kg |
| Vehicle Length | 4860 mm | 4430 mm |
| Vehicle Width | 1940 mm | 1710 mm |
| Vehicle Height | 1770 mm | 1310 mm |
| Wheelbase Size | 2940 mm | 2450 mm |
