2003 BMW X3 vs. 1971 Porsche 917

To start off, 2003 BMW X3 is newer by 32 year(s). Which means there will be less support and parts availability for 1971 Porsche 917. In addition, the cost of maintenance, including insurance, on 1971 Porsche 917 would be higher. At 4,994 cc, 1971 Porsche 917 is equipped with a bigger engine. In terms of performance, 1971 Porsche 917 (520 HP) has 319 more horse power than 2003 BMW X3. (201 HP) In normal driving conditions, 1971 Porsche 917 should accelerate faster than 2003 BMW X3. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW X3 weights approximately 1132 kg more than 1971 Porsche 917.

Because 2003 BMW X3 is four wheel drive (4WD), it will have significant more traction and grip than 1971 Porsche 917. In wet, icy, snow, or gravel driving conditions, 2003 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, 1971 Porsche 917 (610 Nm) has 200 more torque (in Nm) than 2003 BMW X3. (410 Nm). This means 1971 Porsche 917 will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW X3.

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