Save Gas, Money and Your Driving License! Moderate driving and respecting speed limits can lower your fuel consumption by up to 30% and can reduce your risk of getting speed tickets or even banned from driving. You save money both on fuel and speed fines. Speed Guard cruise control can be your companion in any car. Select the speed limit in your area and Speed Guard will warn you when exceeding speed limit! It will also remind you the local fine fees or the imminent penalty points. Smart drivers do more miles by spending less!