1973 AC 428 vs. 2010 BMW 550
To start off, 2010 BMW 550 is newer by 37 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, 2010 BMW 550 (400 HP @ 5500 RPM) has 102 more horse power than 1973 AC 428. (298 HP @ 4600 RPM) In normal driving conditions, 2010 BMW 550 should accelerate faster than 1973 AC 428.
Because 2010 BMW 550 is all wheel drive (AWD), it will have significant more traction and grip than 1973 AC 428. In wet, icy, snow, or gravel driving conditions, 2010 BMW 550 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 30 more torque (in Nm) than 2010 BMW 550. (609 Nm @ 1750 RPM). This means 1973 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 2010 BMW 550. 2010 BMW 550 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. 2010 BMW 550 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1973 AC 428 | 2010 BMW 550 | |
| Make | AC | BMW |
| Model | 428 | 550 |
| Year Released | 1973 | 2010 |
| Engine Position | Front | Front |
| Engine Size | 7002 cc | 4400 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 298 HP | 400 HP |
| Engine RPM | 4600 RPM | 5500 RPM |
| Torque | 639 Nm | 609 Nm |
| Torque RPM | 2800 RPM | 1750 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | AWD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Length | 4430 mm | 4999 mm |
| Vehicle Width | 1710 mm | 1900 mm |
| Vehicle Height | 1310 mm | 1560 mm |
| Wheelbase Size | 2450 mm | 3066 mm |
