2003 GMC Sierra vs. 1971 Mercury Cougar

To start off, 2003 GMC Sierra is newer by 32 year(s). Which means there will be less support and parts availability for 1971 Mercury Cougar. In addition, the cost of maintenance, including insurance, on 1971 Mercury Cougar would be higher. At 5,769 cc (8 cylinders), 1971 Mercury Cougar is equipped with a bigger engine. In terms of performance, 2003 GMC Sierra (275 HP) has 108 more horse power than 1971 Mercury Cougar. (167 HP). In normal driving conditions, 2003 GMC Sierra should accelerate faster than 1971 Mercury Cougar. With that said, vehicle weight also plays an important factor in acceleration. 2003 GMC Sierra weights approximately 295 kg more than 1971 Mercury Cougar. 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, 2003 GMC Sierra (386 Nm) has 23 more torque (in Nm) than 1971 Mercury Cougar. (363 Nm). This means 2003 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1971 Mercury Cougar.

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