1973 AC 428 vs. 2007 BMW 525
To start off, 2007 BMW 525 is newer by 34 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 2007 BMW 525. (215 HP @ 6500 RPM). In normal driving conditions, 1973 AC 428 should accelerate faster than 2007 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW 525 weights approximately 135 kg more than 1973 AC 428.
Because 2007 BMW 525 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, 2007 BMW 525 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 389 more torque (in Nm) than 2007 BMW 525. (250 Nm @ 2750 RPM). This means 1973 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 525. 2007 BMW 525 has automatic transmission and 1973 AC 428 has manual transmission. 1973 AC 428 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 BMW 525 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1973 AC 428 | 2007 BMW 525 | |
| Make | AC | BMW |
| Model | 428 | 525 |
| Year Released | 1973 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 7002 cc | 2497 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 298 HP | 215 HP |
| Engine RPM | 4600 RPM | 6500 RPM |
| Torque | 639 Nm | 250 Nm |
| Torque RPM | 2800 RPM | 2750 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1430 kg | 1565 kg |
| Vehicle Length | 4430 mm | 4850 mm |
| Vehicle Width | 1710 mm | 1850 mm |
| Vehicle Height | 1310 mm | 1470 mm |
| Wheelbase Size | 2450 mm | 2890 mm |
