You can save up to €2 of fuel per week by simply reversing your car into a parking space, so you drive away forwards. It's also safer.
According to Irish Advanced Motorists, reversing out of a space when the car's engine is cold uses around 20 to 25 times more petrol in the first few seconds than it does when warm. If you do this 10 to 12 times a week that adds up to a cost of about €100 a year, not to mention the increased wear on the car’s engine.
Also, reversing into somewhere you can see (a parking bay) rather than reversing out into somewhere you can’t see (often a line of moving traffic) is much safer. It is also easier to control a car going forwards than backwards when it is first started, and attempting a potentially high risk manoeuvre such as reversing when you have just entered a car and are not concentrating fully, is more dangerous.
From a security point of view, reversing close to an object such as a wall can make it more difficult for thieves to gain access and, if you need to leave a parking space quickly for personal security reasons, driving forward provides you with better acceleration and improved vision.
