2004 BMW X5 vs. 1971 AC 428
To start off, 2004 BMW X5 is newer by 33 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, 2004 BMW X5 (355 HP @ 7400 RPM) has 57 more horse power than 1971 AC 428. (298 HP @ 4600 RPM). In normal driving conditions, 2004 BMW X5 should accelerate faster than 1971 AC 428. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW X5 weights approximately 845 kg more than 1971 AC 428. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 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, 2004 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) has 139 more torque (in Nm) than 2004 BMW X5. (500 Nm). This means 1971 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 2004 BMW X5.
Compare all specifications:
| 2004 BMW X5 | 1971 AC 428 | |
| Make | BMW | AC |
| Model | X5 | 428 |
| Year Released | 2004 | 1971 |
| Engine Position | Front | Front |
| Engine Size | 4802 cc | 7003 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Horse Power | 355 HP | 298 HP |
| Engine RPM | 7400 RPM | 4600 RPM |
| Torque | 500 Nm | 639 Nm |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 2275 kg | 1430 kg |
| Vehicle Length | 4670 mm | 4430 mm |
| Vehicle Width | 1880 mm | 1710 mm |
| Vehicle Height | 1760 mm | 1310 mm |
| Wheelbase Size | 2890 mm | 2450 mm |
