1973 AC 428 vs. 2005 BMW X5
To start off, 2005 BMW X5 is newer by 32 year(s). Which means there will be less support and parts availability for 1973 AC 428. In addition, the cost of maintenance, including insurance, on 1973 AC 428 would be higher. At 7,002 cc (8 cylinders), 1973 AC 428 is equipped with a bigger engine. In terms of performance, 1973 AC 428 (298 HP @ 4600 RPM) has 83 more horse power than 2005 BMW X5. (215 HP @ 4000 RPM). In normal driving conditions, 1973 AC 428 should accelerate faster than 2005 BMW X5. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW X5 weights approximately 740 kg more than 1973 AC 428.
Because 2005 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 1973 AC 428. 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, 1973 AC 428 (639 Nm @ 2800 RPM) has 119 more torque (in Nm) than 2005 BMW X5. (520 Nm @ 2000 RPM). This means 1973 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW X5.
Compare all specifications:
| 1973 AC 428 | 2005 BMW X5 | |
| Make | AC | BMW |
| Model | 428 | X5 |
| Year Released | 1973 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 7002 cc | 2926 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 298 HP | 215 HP |
| Engine RPM | 4600 RPM | 4000 RPM |
| Torque | 639 Nm | 520 Nm |
| Torque RPM | 2800 RPM | 2000 RPM |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1430 kg | 2170 kg |
| Vehicle Length | 4430 mm | 4670 mm |
| Vehicle Width | 1710 mm | 1880 mm |
| Vehicle Height | 1310 mm | 1720 mm |
| Wheelbase Size | 2450 mm | 2830 mm |
