1971 AC 428 vs. 2013 BMW 5 Series
To start off, 2013 BMW 5 Series is newer by 42 year(s). Which means there will be less support and parts availability for 1971 AC 428. In addition, the cost of maintenance, including insurance, on 1971 AC 428 would be higher. At 7,003 cc (8 cylinders), 1971 AC 428 is equipped with a bigger engine. In terms of performance, 1971 AC 428 (298 HP @ 4600 RPM) has 60 more horse power than 2013 BMW 5 Series. (238 HP @ 5000 RPM). In normal driving conditions, 1971 AC 428 should accelerate faster than 2013 BMW 5 Series. With that said, vehicle weight also plays an important factor in acceleration. 2013 BMW 5 Series weights approximately 385 kg more than 1971 AC 428.
Because 2013 BMW 5 Series is all wheel drive (AWD), it will have significant more traction and grip than 1971 AC 428. In wet, icy, snow, or gravel driving conditions, 2013 BMW 5 Series 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, 1971 AC 428 (639 Nm @ 2800 RPM) has 289 more torque (in Nm) than 2013 BMW 5 Series. (350 Nm @ 4800 RPM). This means 1971 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 2013 BMW 5 Series. 2013 BMW 5 Series has automatic transmission and 1971 AC 428 has manual transmission. 1971 AC 428 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2013 BMW 5 Series will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1971 AC 428 | 2013 BMW 5 Series | |
| Make | AC | BMW |
| Model | 428 | 5 Series |
| Year Released | 1971 | 2013 |
| Engine Position | Front | Front |
| Engine Size | 7003 cc | 1997 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 298 HP | 238 HP |
| Engine RPM | 4600 RPM | 5000 RPM |
| Torque | 639 Nm | 350 Nm |
| Torque RPM | 2800 RPM | 4800 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | AWD |
| Transmission Type | Manual | 8-speed automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1430 kg | 1815 kg |
| Vehicle Length | 4430 mm | 4905 mm |
| Vehicle Width | 1710 mm | 2094 mm |
| Vehicle Height | 1310 mm | 1464 mm |
| Wheelbase Size | 2450 mm | 2968 mm |
