1973 Pontiac Firebird vs. 2013 BMW X3
To start off, 2013 BMW X3 is newer by 40 year(s). Which means there will be less support and parts availability for 1973 Pontiac Firebird. In addition, the cost of maintenance, including insurance, on 1973 Pontiac Firebird would be higher. At 7,467 cc (8 cylinders), 1973 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 1973 Pontiac Firebird (335 HP @ 4800 RPM) has 98 more horse power than 2013 BMW X3. (237 HP @ 5000 RPM). In normal driving conditions, 1973 Pontiac Firebird should accelerate faster than 2013 BMW X3. With that said, vehicle weight also plays an important factor in acceleration. 2013 BMW X3 weights approximately 415 kg more than 1973 Pontiac Firebird.
Because 2013 BMW X3 is all wheel drive (AWD), it will have significant more traction and grip than 1973 Pontiac Firebird. 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.
Compare all specifications:
| 1973 Pontiac Firebird | 2013 BMW X3 | |
| Make | Pontiac | BMW |
| Model | Firebird | X3 |
| Year Released | 1973 | 2013 |
| Body Type | Coupe | SUV |
| Engine Position | Front | Front |
| Engine Size | 7467 cc | 1997 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 335 HP | 237 HP |
| Engine RPM | 4800 RPM | 5000 RPM |
| Engine Bore Size | 104.9 mm | 84 mm |
| Engine Stroke Size | 108 mm | 90 mm |
| Engine Compression Ratio | 10.3:1 | 10.0 :1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | AWD |
| Transmission Type | Automatic | 8-speed automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1450 kg | 1865 kg |
| Vehicle Length | 4870 mm | 4648 mm |
| Vehicle Width | 1880 mm | 2098 mm |
| Vehicle Height | 1280 mm | 1661 mm |
| Wheelbase Size | 2750 mm | 2810 mm |
