1984 Ford Sierra vs. 1973 Mercury Cougar

To start off, 1984 Ford Sierra is newer by 11 year(s). Which means there will be less support and parts availability for 1973 Mercury Cougar. In addition, the cost of maintenance, including insurance, on 1973 Mercury Cougar would be higher. At 6,589 cc (8 cylinders), 1973 Mercury Cougar is equipped with a bigger engine. In terms of performance, 1973 Mercury Cougar (168 HP @ 3800 RPM) has 8 more horse power than 1984 Ford Sierra. (160 HP @ 5700 RPM) In normal driving conditions, 1973 Mercury Cougar should accelerate faster than 1984 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1973 Mercury Cougar weights approximately 875 kg more than 1984 Ford Sierra. 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, 1973 Mercury Cougar (375 Nm @ 2000 RPM) has 159 more torque (in Nm) than 1984 Ford Sierra. (216 Nm @ 4300 RPM). This means 1973 Mercury Cougar will have an easier job in driving up hills or pulling heavy equipment than 1984 Ford Sierra.

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