1981 BMW 628 vs. 2013 BMW X3
To start off, 2013 BMW X3 is newer by 32 year(s). Which means there will be less support and parts availability for 1981 BMW 628. In addition, the cost of maintenance, including insurance, on 1981 BMW 628 would be higher. At 2,979 cc (6 cylinders), 2013 BMW X3 is equipped with a bigger engine. In terms of performance, 2013 BMW X3 (296 HP @ 5800 RPM) has 115 more horse power than 1981 BMW 628. (181 HP @ 6000 RPM) In normal driving conditions, 2013 BMW X3 should accelerate faster than 1981 BMW 628. With that said, vehicle weight also plays an important factor in acceleration. 2013 BMW X3 weights approximately 445 kg more than 1981 BMW 628. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2013 BMW X3 is all wheel drive (AWD), it will have significant more traction and grip than 1981 BMW 628. In wet, icy, snow, or gravel driving conditions, 2013 BMW X3 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 X3 (407 Nm @ 5000 RPM) has 167 more torque (in Nm) than 1981 BMW 628. (240 Nm @ 4000 RPM). This means 2013 BMW X3 will have an easier job in driving up hills or pulling heavy equipment than 1981 BMW 628. 2013 BMW X3 has automatic transmission and 1981 BMW 628 has manual transmission. 1981 BMW 628 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2013 BMW X3 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1981 BMW 628 | 2013 BMW X3 | |
| Make | BMW | BMW |
| Model | 628 | X3 |
| Year Released | 1981 | 2013 |
| Body Type | Coupe | SUV |
| Engine Position | Front | Front |
| Engine Size | 2788 cc | 2979 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 181 HP | 296 HP |
| Engine RPM | 6000 RPM | 5800 RPM |
| Torque | 240 Nm | 407 Nm |
| Torque RPM | 4000 RPM | 5000 RPM |
| Engine Bore Size | 86 mm | 84 mm |
| Engine Stroke Size | 80 mm | 89 mm |
| Engine Compression Ratio | 9.3:1 | 10.2 :1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | AWD |
| Transmission Type | Manual | 8-speed automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1470 kg | 1915 kg |
| Vehicle Length | 4760 mm | 4648 mm |
| Vehicle Width | 1730 mm | 2098 mm |
| Vehicle Height | 1370 mm | 1661 mm |
| Wheelbase Size | 2640 mm | 2810 mm |
| Fuel Tank Capacity | 70 L | 67 L |
