1984 Ford Sierra vs. 2013 BMW X5 M
To start off, 2013 BMW X5 M is newer by 29 year(s). Which means there will be less support and parts availability for 1984 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1984 Ford Sierra would be higher. At 4,395 cc (8 cylinders), 2013 BMW X5 M is equipped with a bigger engine. In terms of performance, 2013 BMW X5 M (547 HP @ 6000 RPM) has 488 more horse power than 1984 Ford Sierra. (59 HP @ 5700 RPM) In normal driving conditions, 2013 BMW X5 M should accelerate faster than 1984 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2013 BMW X5 M weights approximately 1465 kg more than 1984 Ford Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2013 BMW X5 M is all wheel drive (AWD), it will have significant more traction and grip than 1984 Ford Sierra. In wet, icy, snow, or gravel driving conditions, 2013 BMW X5 M 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, 2013 BMW X5 M (678 Nm @ 5650 RPM) has 580 more torque (in Nm) than 1984 Ford Sierra. (98 Nm @ 3100 RPM). This means 2013 BMW X5 M will have an easier job in driving up hills or pulling heavy equipment than 1984 Ford Sierra. 2013 BMW X5 M has automatic transmission and 1984 Ford Sierra has manual transmission. 1984 Ford Sierra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2013 BMW X5 M will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1984 Ford Sierra | 2013 BMW X5 M | |
| Make | Ford | BMW |
| Model | Sierra | X5 M |
| Year Released | 1984 | 2013 |
| Engine Position | Front | Front |
| Engine Size | 1294 cc | 4395 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 59 HP | 547 HP |
| Engine RPM | 5700 RPM | 6000 RPM |
| Torque | 98 Nm | 678 Nm |
| Torque RPM | 3100 RPM | 5650 RPM |
| Engine Bore Size | 79.1 mm | 89 mm |
| Engine Stroke Size | 66 mm | 88 mm |
| Drive Type | Rear | AWD |
| Transmission Type | Manual | 6-speed automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 5 doors |
| Vehicle Weight | 970 kg | 2435 kg |
| Vehicle Length | 4400 mm | 4851 mm |
| Vehicle Width | 1710 mm | 2197 mm |
| Vehicle Height | 1420 mm | 1764 mm |
| Wheelbase Size | 2610 mm | 2933 mm |
| Fuel Tank Capacity | 60 L | 85 L |
