1975 AC 428 vs. 2008 BMW X5
To start off, 2008 BMW X5 is newer by 33 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, 1975 AC 428 (298 HP @ 4600 RPM) has 38 more horse power than 2008 BMW X5. (260 HP @ 6600 RPM). In normal driving conditions, 1975 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 1975 AC 428.
Because 2008 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, 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, 1975 AC 428 (639 Nm @ 2800 RPM) has 334 more torque (in Nm) than 2008 BMW X5. (305 Nm @ 2750 RPM). This means 1975 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 2008 BMW X5. 2008 BMW X5 has automatic transmission and 1975 AC 428 has manual transmission. 1975 AC 428 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 BMW X5 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1975 AC 428 | 2008 BMW X5 | |
| Make | AC | BMW |
| Model | 428 | X5 |
| Year Released | 1975 | 2008 |
| Engine Position | Front | Front |
| Engine Size | 7003 cc | 2996 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 298 HP | 260 HP |
| Engine RPM | 4600 RPM | 6600 RPM |
| Torque | 639 Nm | 305 Nm |
| Torque RPM | 2800 RPM | 2750 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1430 kg | 1550 kg |
| Vehicle Length | 4430 mm | 4860 mm |
| Vehicle Width | 1710 mm | 1940 mm |
| Vehicle Height | 1310 mm | 1770 mm |
| Wheelbase Size | 2450 mm | 2940 mm |
