2006 BMW X5 vs. 1981 Buick Estate
To start off, 2006 BMW X5 is newer by 25 year(s). Which means there will be less support and parts availability for 1981 Buick Estate. In addition, the cost of maintenance, including insurance, on 1981 Buick Estate would be higher. At 5,735 cc (8 cylinders), 1981 Buick Estate is equipped with a bigger engine. In terms of performance, 2006 BMW X5 (228 HP @ 3500 RPM) has 75 more horse power than 1981 Buick Estate. (153 HP @ 3400 RPM). In normal driving conditions, 2006 BMW X5 should accelerate faster than 1981 Buick Estate. With that said, vehicle weight also plays an important factor in acceleration. 1981 Buick Estate weights approximately 250 kg more than 2006 BMW X5.
Because 2006 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 1981 Buick Estate. In wet, icy, snow, or gravel driving conditions, 2006 BMW X5 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, 1981 Buick Estate (380 Nm @ 1800 RPM) has 80 more torque (in Nm) than 2006 BMW X5. (300 Nm @ 3500 RPM). This means 1981 Buick Estate will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW X5. 1981 Buick Estate has automatic transmission and 2006 BMW X5 has manual transmission. 2006 BMW X5 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1981 Buick Estate will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 BMW X5 | 1981 Buick Estate | |
| Make | BMW | Buick |
| Model | X5 | Estate |
| Year Released | 2006 | 1981 |
| Body Type | SUV | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 2979 cc | 5735 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 228 HP | 153 HP |
| Engine RPM | 3500 RPM | 3400 RPM |
| Torque | 300 Nm | 380 Nm |
| Torque RPM | 3500 RPM | 1800 RPM |
| Engine Bore Size | 84 mm | 96.5 mm |
| Engine Stroke Size | 89.6 mm | 97.8 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1630 kg | 1880 kg |
| Vehicle Length | 4670 mm | 5510 mm |
| Vehicle Width | 1880 mm | 1990 mm |
| Vehicle Height | 1720 mm | 1440 mm |
| Wheelbase Size | 2830 mm | 2950 mm |
