Parking can be a problem. Whatever you do, do not park anywhere where there are double yellow lines. Cars which are not parked properly can be clamped or towed away. However in practice this would apply to most of the cars in the city centre. When visiting certain localities in Malta and its neighbouring islands of Gozo and Comino watch out for “Time Parking Zones”. These are zones where parking is limited to a one hour maximum time frame.
At the main airport there are more than 600 spaces for cars to park. Of course when you rent a vehicle you do not need to worry about finding a space. If any motoring or parking offence is committed for which a fine is payable then this will be required to be settled before departure. Otherwise your car hire Malta company will send the fine on to you.
Don't park on double yellow lines anywhere - it's a surefire way to get clamped then towed. Watch out for the Time Parking Zones found in many of the town, not always clear, you'll get towed or clamped if you overstay the time
Paid parking is a good idea and isn't expensive, except in Valletta where demand pushes up the prices. Most paid parking is a dusty parking lot on waste ground but there are surfaced lots in the main towns. It's not expensive and at least you know your car is safe from the clampers.
Enforcement is quite strict as it's a money spinner for the country. It's usually done by police although clamping firms often tour the streets looking for victims.
In theory Malta follows the Blue Badge scheme but it's always better to check before leaving your car anywhere. Don't risk parking on double yellows as you might at home - your badge will count for little there.