1958 BMW 503 vs. 1976 Pontiac Grand Safari
To start off, 1976 Pontiac Grand Safari is newer by 18 year(s). Which means there will be less support and parts availability for 1958 BMW 503. In addition, the cost of maintenance, including insurance, on 1958 BMW 503 would be higher. At 6,558 cc (8 cylinders), 1976 Pontiac Grand Safari is equipped with a bigger engine. In terms of performance, 1976 Pontiac Grand Safari (182 HP @ 3600 RPM) has 44 more horse power than 1958 BMW 503. (138 HP @ 4800 RPM) In normal driving conditions, 1976 Pontiac Grand Safari should accelerate faster than 1958 BMW 503. With that said, vehicle weight also plays an important factor in acceleration. 1976 Pontiac Grand Safari weights approximately 435 kg more than 1958 BMW 503. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 1976 Pontiac Grand Safari (440 Nm @ 1600 RPM) has 218 more torque (in Nm) than 1958 BMW 503. (222 Nm @ 2500 RPM). This means 1976 Pontiac Grand Safari will have an easier job in driving up hills or pulling heavy equipment than 1958 BMW 503.
Compare all specifications:
| 1958 BMW 503 | 1976 Pontiac Grand Safari | |
| Make | BMW | Pontiac |
| Model | 503 | Grand Safari |
| Year Released | 1958 | 1976 |
| Engine Position | Front | Front |
| Engine Size | 3168 cc | 6558 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 138 HP | 182 HP |
| Engine RPM | 4800 RPM | 3600 RPM |
| Torque | 222 Nm | 440 Nm |
| Torque RPM | 2500 RPM | 1600 RPM |
| Engine Bore Size | 82 mm | 110.5 mm |
| Engine Stroke Size | 75 mm | 85.9 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Vehicle Weight | 1500 kg | 1935 kg |
| Vehicle Length | 4760 mm | 5450 mm |
| Vehicle Width | 1710 mm | 2020 mm |
| Vehicle Height | 1400 mm | 1460 mm |
| Wheelbase Size | 2840 mm | 2950 mm |
