2007 BMW X3 vs. 1985 Pontiac Grand Am
To start off, 2007 BMW X3 is newer by 22 year(s). Which means there will be less support and parts availability for 1985 Pontiac Grand Am. In addition, the cost of maintenance, including insurance, on 1985 Pontiac Grand Am would be higher. At 2,471 cc (4 cylinders), 1985 Pontiac Grand Am is equipped with a bigger engine. In terms of performance, 2007 BMW X3 (149 HP @ 4000 RPM) has 59 more horse power than 1985 Pontiac Grand Am. (90 HP @ 4400 RPM). In normal driving conditions, 2007 BMW X3 should accelerate faster than 1985 Pontiac Grand Am. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW X3 weights approximately 610 kg more than 1985 Pontiac Grand Am. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 BMW X3 is four wheel drive (4WD), it will have significant more traction and grip than 1985 Pontiac Grand Am. In wet, icy, snow, or gravel driving conditions, 2007 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, 2007 BMW X3 (330 Nm @ 2000 RPM) has 151 more torque (in Nm) than 1985 Pontiac Grand Am. (179 Nm @ 2800 RPM). This means 2007 BMW X3 will have an easier job in driving up hills or pulling heavy equipment than 1985 Pontiac Grand Am. 1985 Pontiac Grand Am has automatic transmission and 2007 BMW X3 has manual transmission. 2007 BMW X3 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1985 Pontiac Grand Am will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW X3 | 1985 Pontiac Grand Am | |
| Make | BMW | Pontiac |
| Model | X3 | Grand Am |
| Year Released | 2007 | 1985 |
| Engine Position | Front | Front |
| Engine Size | 1995 cc | 2471 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 149 HP | 90 HP |
| Engine RPM | 4000 RPM | 4400 RPM |
| Torque | 330 Nm | 179 Nm |
| Torque RPM | 2000 RPM | 2800 RPM |
| Engine Bore Size | 84 mm | 101.6 mm |
| Engine Stroke Size | 90 mm | 76.2 mm |
| Engine Compression Ratio | 17.0:1 | 9.0:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 1740 kg | 1130 kg |
| Vehicle Length | 4570 mm | 4520 mm |
| Vehicle Width | 1680 mm | 1710 mm |
| Vehicle Height | 1860 mm | 1340 mm |
| Wheelbase Size | 2800 mm | 2630 mm |
