2001 BMW X5 vs. 1975 AC 428
To start off, 2001 BMW X5 is newer by 26 year(s). Which means there will be less support and parts availability for 1975 AC 428. In addition, the cost of maintenance, including insurance, on 1975 AC 428 would be higher. At 7,003 cc (8 cylinders), 1975 AC 428 is equipped with a bigger engine. In terms of performance, 2001 BMW X5 (329 HP @ 5700 RPM) has 31 more horse power than 1975 AC 428. (298 HP @ 4600 RPM). In normal driving conditions, 2001 BMW X5 should accelerate faster than 1975 AC 428. With that said, vehicle weight also plays an important factor in acceleration. 2001 BMW X5 weights approximately 750 kg more than 1975 AC 428. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2001 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 1975 AC 428. In wet, icy, snow, or gravel driving conditions, 2001 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, 1975 AC 428 (639 Nm @ 2800 RPM) has 159 more torque (in Nm) than 2001 BMW X5. (480 Nm @ 3700 RPM). This means 1975 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 2001 BMW X5.
Compare all specifications:
| 2001 BMW X5 | 1975 AC 428 | |
| Make | BMW | AC |
| Model | X5 | 428 |
| Year Released | 2001 | 1975 |
| Engine Position | Front | Front |
| Engine Size | 4619 cc | 7003 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Horse Power | 329 HP | 298 HP |
| Engine RPM | 5700 RPM | 4600 RPM |
| Torque | 480 Nm | 639 Nm |
| Torque RPM | 3700 RPM | 2800 RPM |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 2180 kg | 1430 kg |
| Vehicle Length | 4670 mm | 4430 mm |
| Vehicle Width | 1880 mm | 1710 mm |
| Vehicle Height | 1710 mm | 1310 mm |
| Wheelbase Size | 2830 mm | 2450 mm |
